Home / 25,587.16-38,422.42-15,788.72

Finding the Fourth Proportional to 25,587.16, 38,422.42 and 15,788.72

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Solution

The fourth proportional to 25,587.16, 38,422.42 and 15,788.72 is: 23,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,587.16 : 38,422.42 = 15,788.72 : x
  2. Step 2: Convert to fraction form
    25,587.16/38,422.42 = 15,788.72/x
  3. Step 3: Cross multiply
    25,587.16x = 38,422.42 × 15,788.72
  4. Step 4: Simplify right side
    25,587.16x = 606,640,887.69
  5. Step 5: Solve for x
    x = 606,640,887.69/25,587.16
  6. Step 6: Final answer
    x = 23,708.80

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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.