Home / 31,051.20-42,851.10-16,904.04

Finding the Fourth Proportional to 31,051.20, 42,851.10 and 16,904.04

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Solution

The fourth proportional to 31,051.20, 42,851.10 and 16,904.04 is: 23,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,051.20 : 42,851.10 = 16,904.04 : x
  2. Step 2: Convert to fraction form
    31,051.20/42,851.10 = 16,904.04/x
  3. Step 3: Cross multiply
    31,051.20x = 42,851.10 × 16,904.04
  4. Step 4: Simplify right side
    31,051.20x = 724,356,708.44
  5. Step 5: Solve for x
    x = 724,356,708.44/31,051.20
  6. Step 6: Final answer
    x = 23,327.82

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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.