Home / 28,259.04-42,380.40-11,392.04

Finding the Fourth Proportional to 28,259.04, 42,380.40 and 11,392.04

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Solution

The fourth proportional to 28,259.04, 42,380.40 and 11,392.04 is: 17,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.04 : 42,380.40 = 11,392.04 : x
  2. Step 2: Convert to fraction form
    28,259.04/42,380.40 = 11,392.04/x
  3. Step 3: Cross multiply
    28,259.04x = 42,380.40 × 11,392.04
  4. Step 4: Simplify right side
    28,259.04x = 482,799,212.02
  5. Step 5: Solve for x
    x = 482,799,212.02/28,259.04
  6. Step 6: Final answer
    x = 17,084.77

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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.