Home / 21,127.02-31,660.90-16,425.50

Finding the Fourth Proportional to 21,127.02, 31,660.90 and 16,425.50

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Solution

The fourth proportional to 21,127.02, 31,660.90 and 16,425.50 is: 24,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127.02 : 31,660.90 = 16,425.50 : x
  2. Step 2: Convert to fraction form
    21,127.02/31,660.90 = 16,425.50/x
  3. Step 3: Cross multiply
    21,127.02x = 31,660.90 × 16,425.50
  4. Step 4: Simplify right side
    21,127.02x = 520,046,112.95
  5. Step 5: Solve for x
    x = 520,046,112.95/21,127.02
  6. Step 6: Final answer
    x = 24,615.21

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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.