Home / 28,043.91-42,056.76-9,318.92

Finding the Fourth Proportional to 28,043.91, 42,056.76 and 9,318.92

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Solution

The fourth proportional to 28,043.91, 42,056.76 and 9,318.92 is: 13,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.91 : 42,056.76 = 9,318.92 : x
  2. Step 2: Convert to fraction form
    28,043.91/42,056.76 = 9,318.92/x
  3. Step 3: Cross multiply
    28,043.91x = 42,056.76 × 9,318.92
  4. Step 4: Simplify right side
    28,043.91x = 391,923,581.90
  5. Step 5: Solve for x
    x = 391,923,581.90/28,043.91
  6. Step 6: Final answer
    x = 13,975.35

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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.