Home / 28,527.32-42,801.12-12,730.92

Finding the Fourth Proportional to 28,527.32, 42,801.12 and 12,730.92

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Solution

The fourth proportional to 28,527.32, 42,801.12 and 12,730.92 is: 19,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.32 : 42,801.12 = 12,730.92 : x
  2. Step 2: Convert to fraction form
    28,527.32/42,801.12 = 12,730.92/x
  3. Step 3: Cross multiply
    28,527.32x = 42,801.12 × 12,730.92
  4. Step 4: Simplify right side
    28,527.32x = 544,897,420.62
  5. Step 5: Solve for x
    x = 544,897,420.62/28,527.32
  6. Step 6: Final answer
    x = 19,100.90

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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.