Home / 39,115.32-58,686.42-11,417.40

Finding the Fourth Proportional to 39,115.32, 58,686.42 and 11,417.40

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Solution

The fourth proportional to 39,115.32, 58,686.42 and 11,417.40 is: 17,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.32 : 58,686.42 = 11,417.40 : x
  2. Step 2: Convert to fraction form
    39,115.32/58,686.42 = 11,417.40/x
  3. Step 3: Cross multiply
    39,115.32x = 58,686.42 × 11,417.40
  4. Step 4: Simplify right side
    39,115.32x = 670,046,331.71
  5. Step 5: Solve for x
    x = 670,046,331.71/39,115.32
  6. Step 6: Final answer
    x = 17,130.02

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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.