Home / 39,115.16-58,669.84-12,460.12

Finding the Fourth Proportional to 39,115.16, 58,669.84 and 12,460.12

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Solution

The fourth proportional to 39,115.16, 58,669.84 and 12,460.12 is: 18,689.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.16 : 58,669.84 = 12,460.12 : x
  2. Step 2: Convert to fraction form
    39,115.16/58,669.84 = 12,460.12/x
  3. Step 3: Cross multiply
    39,115.16x = 58,669.84 × 12,460.12
  4. Step 4: Simplify right side
    39,115.16x = 731,033,246.78
  5. Step 5: Solve for x
    x = 731,033,246.78/39,115.16
  6. Step 6: Final answer
    x = 18,689.26

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1.5x scale

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.