Home / 28,252.40-38,989.42-15,506.02

Finding the Fourth Proportional to 28,252.40, 38,989.42 and 15,506.02

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Solution

The fourth proportional to 28,252.40, 38,989.42 and 15,506.02 is: 21,398.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.40 : 38,989.42 = 15,506.02 : x
  2. Step 2: Convert to fraction form
    28,252.40/38,989.42 = 15,506.02/x
  3. Step 3: Cross multiply
    28,252.40x = 38,989.42 × 15,506.02
  4. Step 4: Simplify right side
    28,252.40x = 604,570,726.31
  5. Step 5: Solve for x
    x = 604,570,726.31/28,252.40
  6. Step 6: Final answer
    x = 21,398.92

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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.