Home / 25,390.76-35,031.12-16,445.12

Finding the Fourth Proportional to 25,390.76, 35,031.12 and 16,445.12

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Solution

The fourth proportional to 25,390.76, 35,031.12 and 16,445.12 is: 22,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.76 : 35,031.12 = 16,445.12 : x
  2. Step 2: Convert to fraction form
    25,390.76/35,031.12 = 16,445.12/x
  3. Step 3: Cross multiply
    25,390.76x = 35,031.12 × 16,445.12
  4. Step 4: Simplify right side
    25,390.76x = 576,090,972.13
  5. Step 5: Solve for x
    x = 576,090,972.13/25,390.76
  6. Step 6: Final answer
    x = 22,689.00

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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.