Home / 21,233.20-29,302.20-12,281.20

Finding the Fourth Proportional to 21,233.20, 29,302.20 and 12,281.20

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Solution

The fourth proportional to 21,233.20, 29,302.20 and 12,281.20 is: 16,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.20 : 29,302.20 = 12,281.20 : x
  2. Step 2: Convert to fraction form
    21,233.20/29,302.20 = 12,281.20/x
  3. Step 3: Cross multiply
    21,233.20x = 29,302.20 × 12,281.20
  4. Step 4: Simplify right side
    21,233.20x = 359,866,178.64
  5. Step 5: Solve for x
    x = 359,866,178.64/21,233.20
  6. Step 6: Final answer
    x = 16,948.28

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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.