Home / 39,420.17-59,130.26-14,450.78

Finding the Fourth Proportional to 39,420.17, 59,130.26 and 14,450.78

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Solution

The fourth proportional to 39,420.17, 59,130.26 and 14,450.78 is: 21,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.17 : 59,130.26 = 14,450.78 : x
  2. Step 2: Convert to fraction form
    39,420.17/59,130.26 = 14,450.78/x
  3. Step 3: Cross multiply
    39,420.17x = 59,130.26 × 14,450.78
  4. Step 4: Simplify right side
    39,420.17x = 854,478,454.17
  5. Step 5: Solve for x
    x = 854,478,454.17/39,420.17
  6. Step 6: Final answer
    x = 21,676.17

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.