Home / 22,731.14-31,378.68-15,283.46

Finding the Fourth Proportional to 22,731.14, 31,378.68 and 15,283.46

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Solution

The fourth proportional to 22,731.14, 31,378.68 and 15,283.46 is: 21,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,731.14 : 31,378.68 = 15,283.46 : x
  2. Step 2: Convert to fraction form
    22,731.14/31,378.68 = 15,283.46/x
  3. Step 3: Cross multiply
    22,731.14x = 31,378.68 × 15,283.46
  4. Step 4: Simplify right side
    22,731.14x = 479,574,800.63
  5. Step 5: Solve for x
    x = 479,574,800.63/22,731.14
  6. Step 6: Final answer
    x = 21,097.70

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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.