Home / 31,013.35-42,798.11-16,866.23

Finding the Fourth Proportional to 31,013.35, 42,798.11 and 16,866.23

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Solution

The fourth proportional to 31,013.35, 42,798.11 and 16,866.23 is: 23,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,013.35 : 42,798.11 = 16,866.23 : x
  2. Step 2: Convert to fraction form
    31,013.35/42,798.11 = 16,866.23/x
  3. Step 3: Cross multiply
    31,013.35x = 42,798.11 × 16,866.23
  4. Step 4: Simplify right side
    31,013.35x = 721,842,468.50
  5. Step 5: Solve for x
    x = 721,842,468.50/31,013.35
  6. Step 6: Final answer
    x = 23,275.22

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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.