Home / 39,785.95-59,666.16-13,125.96

Finding the Fourth Proportional to 39,785.95, 59,666.16 and 13,125.96

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Solution

The fourth proportional to 39,785.95, 59,666.16 and 13,125.96 is: 19,684.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.95 : 59,666.16 = 13,125.96 : x
  2. Step 2: Convert to fraction form
    39,785.95/59,666.16 = 13,125.96/x
  3. Step 3: Cross multiply
    39,785.95x = 59,666.16 × 13,125.96
  4. Step 4: Simplify right side
    39,785.95x = 783,175,629.51
  5. Step 5: Solve for x
    x = 783,175,629.51/39,785.95
  6. Step 6: Final answer
    x = 19,684.73

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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.