Home / 28,252.16-38,989.32-15,677

Finding the Fourth Proportional to 28,252.16, 38,989.32 and 15,677

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Solution

The fourth proportional to 28,252.16, 38,989.32 and 15,677 is: 21,635.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.16 : 38,989.32 = 15,677 : x
  2. Step 2: Convert to fraction form
    28,252.16/38,989.32 = 15,677/x
  3. Step 3: Cross multiply
    28,252.16x = 38,989.32 × 15,677
  4. Step 4: Simplify right side
    28,252.16x = 611,235,569.64
  5. Step 5: Solve for x
    x = 611,235,569.64/28,252.16
  6. Step 6: Final answer
    x = 21,635.00

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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.