Home / 27,420.72-37,840.16-14,845.20

Finding the Fourth Proportional to 27,420.72, 37,840.16 and 14,845.20

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Solution

The fourth proportional to 27,420.72, 37,840.16 and 14,845.20 is: 20,486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.72 : 37,840.16 = 14,845.20 : x
  2. Step 2: Convert to fraction form
    27,420.72/37,840.16 = 14,845.20/x
  3. Step 3: Cross multiply
    27,420.72x = 37,840.16 × 14,845.20
  4. Step 4: Simplify right side
    27,420.72x = 561,744,743.23
  5. Step 5: Solve for x
    x = 561,744,743.23/27,420.72
  6. Step 6: Final answer
    x = 20,486.14

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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.