Home / 28,334.54-39,100.88-15,587.66

Finding the Fourth Proportional to 28,334.54, 39,100.88 and 15,587.66

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Solution

The fourth proportional to 28,334.54, 39,100.88 and 15,587.66 is: 21,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.54 : 39,100.88 = 15,587.66 : x
  2. Step 2: Convert to fraction form
    28,334.54/39,100.88 = 15,587.66/x
  3. Step 3: Cross multiply
    28,334.54x = 39,100.88 × 15,587.66
  4. Step 4: Simplify right side
    28,334.54x = 609,491,359.86
  5. Step 5: Solve for x
    x = 609,491,359.86/28,334.54
  6. Step 6: Final answer
    x = 21,510.54

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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.