Home / 28,565.73-42,860.70-15,402.74

Finding the Fourth Proportional to 28,565.73, 42,860.70 and 15,402.74

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Solution

The fourth proportional to 28,565.73, 42,860.70 and 15,402.74 is: 23,110.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565.73 : 42,860.70 = 15,402.74 : x
  2. Step 2: Convert to fraction form
    28,565.73/42,860.70 = 15,402.74/x
  3. Step 3: Cross multiply
    28,565.73x = 42,860.70 × 15,402.74
  4. Step 4: Simplify right side
    28,565.73x = 660,172,004.01
  5. Step 5: Solve for x
    x = 660,172,004.01/28,565.73
  6. Step 6: Final answer
    x = 23,110.63

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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.