Home / 39,419.10-59,134.51-12,756.16

Finding the Fourth Proportional to 39,419.10, 59,134.51 and 12,756.16

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Solution

The fourth proportional to 39,419.10, 59,134.51 and 12,756.16 is: 19,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.10 : 59,134.51 = 12,756.16 : x
  2. Step 2: Convert to fraction form
    39,419.10/59,134.51 = 12,756.16/x
  3. Step 3: Cross multiply
    39,419.10x = 59,134.51 × 12,756.16
  4. Step 4: Simplify right side
    39,419.10x = 754,328,956.56
  5. Step 5: Solve for x
    x = 754,328,956.56/39,419.10
  6. Step 6: Final answer
    x = 19,136.13

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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.