Home / 28,389.56-39,177.28-16,124.88

Finding the Fourth Proportional to 28,389.56, 39,177.28 and 16,124.88

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Solution

The fourth proportional to 28,389.56, 39,177.28 and 16,124.88 is: 22,252.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.56 : 39,177.28 = 16,124.88 : x
  2. Step 2: Convert to fraction form
    28,389.56/39,177.28 = 16,124.88/x
  3. Step 3: Cross multiply
    28,389.56x = 39,177.28 × 16,124.88
  4. Step 4: Simplify right side
    28,389.56x = 631,728,954.80
  5. Step 5: Solve for x
    x = 631,728,954.80/28,389.56
  6. Step 6: Final answer
    x = 22,252.16

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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.