Home / 20,416.61-28,175.02-11,463.95

Finding the Fourth Proportional to 20,416.61, 28,175.02 and 11,463.95

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Solution

The fourth proportional to 20,416.61, 28,175.02 and 11,463.95 is: 15,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.61 : 28,175.02 = 11,463.95 : x
  2. Step 2: Convert to fraction form
    20,416.61/28,175.02 = 11,463.95/x
  3. Step 3: Cross multiply
    20,416.61x = 28,175.02 × 11,463.95
  4. Step 4: Simplify right side
    20,416.61x = 322,997,062.31
  5. Step 5: Solve for x
    x = 322,997,062.31/20,416.61
  6. Step 6: Final answer
    x = 15,820.31

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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.