Home / 39,874.68-54,981.72-25,515.36

Finding the Fourth Proportional to 39,874.68, 54,981.72 and 25,515.36

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Solution

The fourth proportional to 39,874.68, 54,981.72 and 25,515.36 is: 35,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874.68 : 54,981.72 = 25,515.36 : x
  2. Step 2: Convert to fraction form
    39,874.68/54,981.72 = 25,515.36/x
  3. Step 3: Cross multiply
    39,874.68x = 54,981.72 × 25,515.36
  4. Step 4: Simplify right side
    39,874.68x = 1,402,878,379.22
  5. Step 5: Solve for x
    x = 1,402,878,379.22/39,874.68
  6. Step 6: Final answer
    x = 35,182.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.