Home / 28,888.24-39,865.30-16,141.60

Finding the Fourth Proportional to 28,888.24, 39,865.30 and 16,141.60

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Solution

The fourth proportional to 28,888.24, 39,865.30 and 16,141.60 is: 22,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.24 : 39,865.30 = 16,141.60 : x
  2. Step 2: Convert to fraction form
    28,888.24/39,865.30 = 16,141.60/x
  3. Step 3: Cross multiply
    28,888.24x = 39,865.30 × 16,141.60
  4. Step 4: Simplify right side
    28,888.24x = 643,489,726.48
  5. Step 5: Solve for x
    x = 643,489,726.48/28,888.24
  6. Step 6: Final answer
    x = 22,275.14

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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.