Home / 22,514.04-31,072.80-13,440.42

Finding the Fourth Proportional to 22,514.04, 31,072.80 and 13,440.42

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Solution

The fourth proportional to 22,514.04, 31,072.80 and 13,440.42 is: 18,549.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,514.04 : 31,072.80 = 13,440.42 : x
  2. Step 2: Convert to fraction form
    22,514.04/31,072.80 = 13,440.42/x
  3. Step 3: Cross multiply
    22,514.04x = 31,072.80 × 13,440.42
  4. Step 4: Simplify right side
    22,514.04x = 417,631,482.58
  5. Step 5: Solve for x
    x = 417,631,482.58/22,514.04
  6. Step 6: Final answer
    x = 18,549.82

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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.