Home / 21,126.02-31,659.40-16,424.50

Finding the Fourth Proportional to 21,126.02, 31,659.40 and 16,424.50

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Solution

The fourth proportional to 21,126.02, 31,659.40 and 16,424.50 is: 24,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.02 : 31,659.40 = 16,424.50 : x
  2. Step 2: Convert to fraction form
    21,126.02/31,659.40 = 16,424.50/x
  3. Step 3: Cross multiply
    21,126.02x = 31,659.40 × 16,424.50
  4. Step 4: Simplify right side
    21,126.02x = 519,989,815.30
  5. Step 5: Solve for x
    x = 519,989,815.30/21,126.02
  6. Step 6: Final answer
    x = 24,613.71

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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.