Home / 28,599.12-42,915.48-11,957.85

Finding the Fourth Proportional to 28,599.12, 42,915.48 and 11,957.85

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Solution

The fourth proportional to 28,599.12, 42,915.48 and 11,957.85 is: 17,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,599.12 : 42,915.48 = 11,957.85 : x
  2. Step 2: Convert to fraction form
    28,599.12/42,915.48 = 11,957.85/x
  3. Step 3: Cross multiply
    28,599.12x = 42,915.48 × 11,957.85
  4. Step 4: Simplify right side
    28,599.12x = 513,176,872.52
  5. Step 5: Solve for x
    x = 513,176,872.52/28,599.12
  6. Step 6: Final answer
    x = 17,943.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.