Home / 21,425.77-32,112.74-11,031.85

Finding the Fourth Proportional to 21,425.77, 32,112.74 and 11,031.85

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Solution

The fourth proportional to 21,425.77, 32,112.74 and 11,031.85 is: 16,534.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.77 : 32,112.74 = 11,031.85 : x
  2. Step 2: Convert to fraction form
    21,425.77/32,112.74 = 11,031.85/x
  3. Step 3: Cross multiply
    21,425.77x = 32,112.74 × 11,031.85
  4. Step 4: Simplify right side
    21,425.77x = 354,262,875.61
  5. Step 5: Solve for x
    x = 354,262,875.61/21,425.77
  6. Step 6: Final answer
    x = 16,534.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.