Home / 21,258.65-29,377.40-15,944.24

Finding the Fourth Proportional to 21,258.65, 29,377.40 and 15,944.24

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Solution

The fourth proportional to 21,258.65, 29,377.40 and 15,944.24 is: 22,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.65 : 29,377.40 = 15,944.24 : x
  2. Step 2: Convert to fraction form
    21,258.65/29,377.40 = 15,944.24/x
  3. Step 3: Cross multiply
    21,258.65x = 29,377.40 × 15,944.24
  4. Step 4: Simplify right side
    21,258.65x = 468,400,089.57
  5. Step 5: Solve for x
    x = 468,400,089.57/21,258.65
  6. Step 6: Final answer
    x = 22,033.39

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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.