Home / 21,031.54-29,020.18-12,533.44

Finding the Fourth Proportional to 21,031.54, 29,020.18 and 12,533.44

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Solution

The fourth proportional to 21,031.54, 29,020.18 and 12,533.44 is: 17,294.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.54 : 29,020.18 = 12,533.44 : x
  2. Step 2: Convert to fraction form
    21,031.54/29,020.18 = 12,533.44/x
  3. Step 3: Cross multiply
    21,031.54x = 29,020.18 × 12,533.44
  4. Step 4: Simplify right side
    21,031.54x = 363,722,684.82
  5. Step 5: Solve for x
    x = 363,722,684.82/21,031.54
  6. Step 6: Final answer
    x = 17,294.15

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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.