Home / 28,655.46-42,991.14-12,011.58

Finding the Fourth Proportional to 28,655.46, 42,991.14 and 12,011.58

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Solution

The fourth proportional to 28,655.46, 42,991.14 and 12,011.58 is: 18,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.46 : 42,991.14 = 12,011.58 : x
  2. Step 2: Convert to fraction form
    28,655.46/42,991.14 = 12,011.58/x
  3. Step 3: Cross multiply
    28,655.46x = 42,991.14 × 12,011.58
  4. Step 4: Simplify right side
    28,655.46x = 516,391,517.40
  5. Step 5: Solve for x
    x = 516,391,517.40/28,655.46
  6. Step 6: Final answer
    x = 18,020.70

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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.