Home / 22,482.20-31,019.22-12,921.59

Finding the Fourth Proportional to 22,482.20, 31,019.22 and 12,921.59

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Solution

The fourth proportional to 22,482.20, 31,019.22 and 12,921.59 is: 17,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,482.20 : 31,019.22 = 12,921.59 : x
  2. Step 2: Convert to fraction form
    22,482.20/31,019.22 = 12,921.59/x
  3. Step 3: Cross multiply
    22,482.20x = 31,019.22 × 12,921.59
  4. Step 4: Simplify right side
    22,482.20x = 400,817,487.86
  5. Step 5: Solve for x
    x = 400,817,487.86/22,482.20
  6. Step 6: Final answer
    x = 17,828.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.