Home / 28,609.04-39,480.28-15,862.23

Finding the Fourth Proportional to 28,609.04, 39,480.28 and 15,862.23

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Solution

The fourth proportional to 28,609.04, 39,480.28 and 15,862.23 is: 21,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.04 : 39,480.28 = 15,862.23 : x
  2. Step 2: Convert to fraction form
    28,609.04/39,480.28 = 15,862.23/x
  3. Step 3: Cross multiply
    28,609.04x = 39,480.28 × 15,862.23
  4. Step 4: Simplify right side
    28,609.04x = 626,245,084.42
  5. Step 5: Solve for x
    x = 626,245,084.42/28,609.04
  6. Step 6: Final answer
    x = 21,889.76

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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.