Home / 21,390.20-32,042.10-14,823.80

Finding the Fourth Proportional to 21,390.20, 32,042.10 and 14,823.80

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Solution

The fourth proportional to 21,390.20, 32,042.10 and 14,823.80 is: 22,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.20 : 32,042.10 = 14,823.80 : x
  2. Step 2: Convert to fraction form
    21,390.20/32,042.10 = 14,823.80/x
  3. Step 3: Cross multiply
    21,390.20x = 32,042.10 × 14,823.80
  4. Step 4: Simplify right side
    21,390.20x = 474,985,681.98
  5. Step 5: Solve for x
    x = 474,985,681.98/21,390.20
  6. Step 6: Final answer
    x = 22,205.76

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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.