Home / 31,444.49-47,171.36-10,386.71

Finding the Fourth Proportional to 31,444.49, 47,171.36 and 10,386.71

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Solution

The fourth proportional to 31,444.49, 47,171.36 and 10,386.71 is: 15,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,444.49 : 47,171.36 = 10,386.71 : x
  2. Step 2: Convert to fraction form
    31,444.49/47,171.36 = 10,386.71/x
  3. Step 3: Cross multiply
    31,444.49x = 47,171.36 × 10,386.71
  4. Step 4: Simplify right side
    31,444.49x = 489,954,948.84
  5. Step 5: Solve for x
    x = 489,954,948.84/31,444.49
  6. Step 6: Final answer
    x = 15,581.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.