Home / 31,722.28-47,531.51-19,204.36

Finding the Fourth Proportional to 31,722.28, 47,531.51 and 19,204.36

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Solution

The fourth proportional to 31,722.28, 47,531.51 and 19,204.36 is: 28,775.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,722.28 : 47,531.51 = 19,204.36 : x
  2. Step 2: Convert to fraction form
    31,722.28/47,531.51 = 19,204.36/x
  3. Step 3: Cross multiply
    31,722.28x = 47,531.51 × 19,204.36
  4. Step 4: Simplify right side
    31,722.28x = 912,812,287.07
  5. Step 5: Solve for x
    x = 912,812,287.07/31,722.28
  6. Step 6: Final answer
    x = 28,775.12

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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.