Home / 25,989.04-35,864.40-15,915.88

Finding the Fourth Proportional to 25,989.04, 35,864.40 and 15,915.88

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Solution

The fourth proportional to 25,989.04, 35,864.40 and 15,915.88 is: 21,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.04 : 35,864.40 = 15,915.88 : x
  2. Step 2: Convert to fraction form
    25,989.04/35,864.40 = 15,915.88/x
  3. Step 3: Cross multiply
    25,989.04x = 35,864.40 × 15,915.88
  4. Step 4: Simplify right side
    25,989.04x = 570,813,486.67
  5. Step 5: Solve for x
    x = 570,813,486.67/25,989.04
  6. Step 6: Final answer
    x = 21,963.62

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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.