Home / 39,741.81-59,575.65-13,428.15

Finding the Fourth Proportional to 39,741.81, 59,575.65 and 13,428.15

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Solution

The fourth proportional to 39,741.81, 59,575.65 and 13,428.15 is: 20,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,741.81 : 59,575.65 = 13,428.15 : x
  2. Step 2: Convert to fraction form
    39,741.81/59,575.65 = 13,428.15/x
  3. Step 3: Cross multiply
    39,741.81x = 59,575.65 × 13,428.15
  4. Step 4: Simplify right side
    39,741.81x = 799,990,566.32
  5. Step 5: Solve for x
    x = 799,990,566.32/39,741.81
  6. Step 6: Final answer
    x = 20,129.70

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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.