Home / 31,055.39-42,856.45-17,443.45

Finding the Fourth Proportional to 31,055.39, 42,856.45 and 17,443.45

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Solution

The fourth proportional to 31,055.39, 42,856.45 and 17,443.45 is: 24,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,055.39 : 42,856.45 = 17,443.45 : x
  2. Step 2: Convert to fraction form
    31,055.39/42,856.45 = 17,443.45/x
  3. Step 3: Cross multiply
    31,055.39x = 42,856.45 × 17,443.45
  4. Step 4: Simplify right side
    31,055.39x = 747,564,352.71
  5. Step 5: Solve for x
    x = 747,564,352.71/31,055.39
  6. Step 6: Final answer
    x = 24,071.97

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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.