Home / 31,417.02-43,359.57-17,990.46

Finding the Fourth Proportional to 31,417.02, 43,359.57 and 17,990.46

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Solution

The fourth proportional to 31,417.02, 43,359.57 and 17,990.46 is: 24,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,417.02 : 43,359.57 = 17,990.46 : x
  2. Step 2: Convert to fraction form
    31,417.02/43,359.57 = 17,990.46/x
  3. Step 3: Cross multiply
    31,417.02x = 43,359.57 × 17,990.46
  4. Step 4: Simplify right side
    31,417.02x = 780,058,609.70
  5. Step 5: Solve for x
    x = 780,058,609.70/31,417.02
  6. Step 6: Final answer
    x = 24,829.17

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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.