Home / 27,420.46-37,840.21-14,845.21

Finding the Fourth Proportional to 27,420.46, 37,840.21 and 14,845.21

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Solution

The fourth proportional to 27,420.46, 37,840.21 and 14,845.21 is: 20,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.46 : 37,840.21 = 14,845.21 : x
  2. Step 2: Convert to fraction form
    27,420.46/37,840.21 = 14,845.21/x
  3. Step 3: Cross multiply
    27,420.46x = 37,840.21 × 14,845.21
  4. Step 4: Simplify right side
    27,420.46x = 561,745,863.89
  5. Step 5: Solve for x
    x = 561,745,863.89/27,420.46
  6. Step 6: Final answer
    x = 20,486.38

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Half scale
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Double scale
Find fourth proportional to 27,421.46, 37,841.59 and 14,846.21
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.