Home / 25,663.08-35,405.26-15,587.72

Finding the Fourth Proportional to 25,663.08, 35,405.26 and 15,587.72

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Solution

The fourth proportional to 25,663.08, 35,405.26 and 15,587.72 is: 21,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,663.08 : 35,405.26 = 15,587.72 : x
  2. Step 2: Convert to fraction form
    25,663.08/35,405.26 = 15,587.72/x
  3. Step 3: Cross multiply
    25,663.08x = 35,405.26 × 15,587.72
  4. Step 4: Simplify right side
    25,663.08x = 551,887,279.41
  5. Step 5: Solve for x
    x = 551,887,279.41/25,663.08
  6. Step 6: Final answer
    x = 21,505.11

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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.