Home / 28,355.38-42,531.63-8,633.50

Finding the Fourth Proportional to 28,355.38, 42,531.63 and 8,633.50

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Solution

The fourth proportional to 28,355.38, 42,531.63 and 8,633.50 is: 12,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.38 : 42,531.63 = 8,633.50 : x
  2. Step 2: Convert to fraction form
    28,355.38/42,531.63 = 8,633.50/x
  3. Step 3: Cross multiply
    28,355.38x = 42,531.63 × 8,633.50
  4. Step 4: Simplify right side
    28,355.38x = 367,196,827.61
  5. Step 5: Solve for x
    x = 367,196,827.61/28,355.38
  6. Step 6: Final answer
    x = 12,949.81

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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.