Home / 22,172.29-30,590.04-14,218.90

Finding the Fourth Proportional to 22,172.29, 30,590.04 and 14,218.90

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Solution

The fourth proportional to 22,172.29, 30,590.04 and 14,218.90 is: 19,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,172.29 : 30,590.04 = 14,218.90 : x
  2. Step 2: Convert to fraction form
    22,172.29/30,590.04 = 14,218.90/x
  3. Step 3: Cross multiply
    22,172.29x = 30,590.04 × 14,218.90
  4. Step 4: Simplify right side
    22,172.29x = 434,956,719.76
  5. Step 5: Solve for x
    x = 434,956,719.76/22,172.29
  6. Step 6: Final answer
    x = 19,617.13

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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.