Home / 22,748.18-31,394.80-12,678.26

Finding the Fourth Proportional to 22,748.18, 31,394.80 and 12,678.26

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Solution

The fourth proportional to 22,748.18, 31,394.80 and 12,678.26 is: 17,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,748.18 : 31,394.80 = 12,678.26 : x
  2. Step 2: Convert to fraction form
    22,748.18/31,394.80 = 12,678.26/x
  3. Step 3: Cross multiply
    22,748.18x = 31,394.80 × 12,678.26
  4. Step 4: Simplify right side
    22,748.18x = 398,031,437.05
  5. Step 5: Solve for x
    x = 398,031,437.05/22,748.18
  6. Step 6: Final answer
    x = 17,497.29

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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.