Home / 28,432.95-42,657.21-8,711.07

Finding the Fourth Proportional to 28,432.95, 42,657.21 and 8,711.07

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Solution

The fourth proportional to 28,432.95, 42,657.21 and 8,711.07 is: 13,068.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.95 : 42,657.21 = 8,711.07 : x
  2. Step 2: Convert to fraction form
    28,432.95/42,657.21 = 8,711.07/x
  3. Step 3: Cross multiply
    28,432.95x = 42,657.21 × 8,711.07
  4. Step 4: Simplify right side
    28,432.95x = 371,589,942.31
  5. Step 5: Solve for x
    x = 371,589,942.31/28,432.95
  6. Step 6: Final answer
    x = 13,068.99

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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.