Home / 28,225.31-42,337.35-8,503.43

Finding the Fourth Proportional to 28,225.31, 42,337.35 and 8,503.43

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Solution

The fourth proportional to 28,225.31, 42,337.35 and 8,503.43 is: 12,754.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.31 : 42,337.35 = 8,503.43 : x
  2. Step 2: Convert to fraction form
    28,225.31/42,337.35 = 8,503.43/x
  3. Step 3: Cross multiply
    28,225.31x = 42,337.35 × 8,503.43
  4. Step 4: Simplify right side
    28,225.31x = 360,012,480.42
  5. Step 5: Solve for x
    x = 360,012,480.42/28,225.31
  6. Step 6: Final answer
    x = 12,754.95

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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.