Home / 39,419.12-59,136.47-14,459.40

Finding the Fourth Proportional to 39,419.12, 59,136.47 and 14,459.40

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Solution

The fourth proportional to 39,419.12, 59,136.47 and 14,459.40 is: 21,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.12 : 59,136.47 = 14,459.40 : x
  2. Step 2: Convert to fraction form
    39,419.12/59,136.47 = 14,459.40/x
  3. Step 3: Cross multiply
    39,419.12x = 59,136.47 × 14,459.40
  4. Step 4: Simplify right side
    39,419.12x = 855,077,752.75
  5. Step 5: Solve for x
    x = 855,077,752.75/39,419.12
  6. Step 6: Final answer
    x = 21,691.96

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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.