Home / 31,114.23-42,937.81-16,966.77

Finding the Fourth Proportional to 31,114.23, 42,937.81 and 16,966.77

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Solution

The fourth proportional to 31,114.23, 42,937.81 and 16,966.77 is: 23,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,114.23 : 42,937.81 = 16,966.77 : x
  2. Step 2: Convert to fraction form
    31,114.23/42,937.81 = 16,966.77/x
  3. Step 3: Cross multiply
    31,114.23x = 42,937.81 × 16,966.77
  4. Step 4: Simplify right side
    31,114.23x = 728,515,904.16
  5. Step 5: Solve for x
    x = 728,515,904.16/31,114.23
  6. Step 6: Final answer
    x = 23,414.24

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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.