Home / 28,432.68-42,636.65-15,102.73

Finding the Fourth Proportional to 28,432.68, 42,636.65 and 15,102.73

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Solution

The fourth proportional to 28,432.68, 42,636.65 and 15,102.73 is: 22,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.68 : 42,636.65 = 15,102.73 : x
  2. Step 2: Convert to fraction form
    28,432.68/42,636.65 = 15,102.73/x
  3. Step 3: Cross multiply
    28,432.68x = 42,636.65 × 15,102.73
  4. Step 4: Simplify right side
    28,432.68x = 643,929,813.05
  5. Step 5: Solve for x
    x = 643,929,813.05/28,432.68
  6. Step 6: Final answer
    x = 22,647.52

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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.