Home / 31,113.71-42,935.49-19,034.29

Finding the Fourth Proportional to 31,113.71, 42,935.49 and 19,034.29

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Solution

The fourth proportional to 31,113.71, 42,935.49 and 19,034.29 is: 26,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,113.71 : 42,935.49 = 19,034.29 : x
  2. Step 2: Convert to fraction form
    31,113.71/42,935.49 = 19,034.29/x
  3. Step 3: Cross multiply
    31,113.71x = 42,935.49 × 19,034.29
  4. Step 4: Simplify right side
    31,113.71x = 817,246,460.61
  5. Step 5: Solve for x
    x = 817,246,460.61/31,113.71
  6. Step 6: Final answer
    x = 26,266.45

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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.