Home / 28,398.65-42,565.68-17,280.86

Finding the Fourth Proportional to 28,398.65, 42,565.68 and 17,280.86

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Solution

The fourth proportional to 28,398.65, 42,565.68 and 17,280.86 is: 25,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.65 : 42,565.68 = 17,280.86 : x
  2. Step 2: Convert to fraction form
    28,398.65/42,565.68 = 17,280.86/x
  3. Step 3: Cross multiply
    28,398.65x = 42,565.68 × 17,280.86
  4. Step 4: Simplify right side
    28,398.65x = 735,571,344.06
  5. Step 5: Solve for x
    x = 735,571,344.06/28,398.65
  6. Step 6: Final answer
    x = 25,901.64

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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.