Home / 28,426.06-42,639.19-8,704.53

Finding the Fourth Proportional to 28,426.06, 42,639.19 and 8,704.53

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Solution

The fourth proportional to 28,426.06, 42,639.19 and 8,704.53 is: 13,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426.06 : 42,639.19 = 8,704.53 : x
  2. Step 2: Convert to fraction form
    28,426.06/42,639.19 = 8,704.53/x
  3. Step 3: Cross multiply
    28,426.06x = 42,639.19 × 8,704.53
  4. Step 4: Simplify right side
    28,426.06x = 371,154,108.53
  5. Step 5: Solve for x
    x = 371,154,108.53/28,426.06
  6. Step 6: Final answer
    x = 13,056.83

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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.