Home / 21,424.77-29,534.73-15,031.98

Finding the Fourth Proportional to 21,424.77, 29,534.73 and 15,031.98

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Solution

The fourth proportional to 21,424.77, 29,534.73 and 15,031.98 is: 20,722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.77 : 29,534.73 = 15,031.98 : x
  2. Step 2: Convert to fraction form
    21,424.77/29,534.73 = 15,031.98/x
  3. Step 3: Cross multiply
    21,424.77x = 29,534.73 × 15,031.98
  4. Step 4: Simplify right side
    21,424.77x = 443,965,470.67
  5. Step 5: Solve for x
    x = 443,965,470.67/21,424.77
  6. Step 6: Final answer
    x = 20,722.06

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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.