Home / 20,595.87-28,459.40-16,437.15

Finding the Fourth Proportional to 20,595.87, 28,459.40 and 16,437.15

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Solution

The fourth proportional to 20,595.87, 28,459.40 and 16,437.15 is: 22,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.87 : 28,459.40 = 16,437.15 : x
  2. Step 2: Convert to fraction form
    20,595.87/28,459.40 = 16,437.15/x
  3. Step 3: Cross multiply
    20,595.87x = 28,459.40 × 16,437.15
  4. Step 4: Simplify right side
    20,595.87x = 467,791,344.52
  5. Step 5: Solve for x
    x = 467,791,344.52/20,595.87
  6. Step 6: Final answer
    x = 22,712.87

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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.