Home / 28,888.47-39,865.33-16,141.76

Finding the Fourth Proportional to 28,888.47, 39,865.33 and 16,141.76

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Solution

The fourth proportional to 28,888.47, 39,865.33 and 16,141.76 is: 22,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.47 : 39,865.33 = 16,141.76 : x
  2. Step 2: Convert to fraction form
    28,888.47/39,865.33 = 16,141.76/x
  3. Step 3: Cross multiply
    28,888.47x = 39,865.33 × 16,141.76
  4. Step 4: Simplify right side
    28,888.47x = 643,496,492.80
  5. Step 5: Solve for x
    x = 643,496,492.80/28,888.47
  6. Step 6: Final answer
    x = 22,275.20

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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.