Home / 28,483.55-39,306.72-15,736.87

Finding the Fourth Proportional to 28,483.55, 39,306.72 and 15,736.87

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Solution

The fourth proportional to 28,483.55, 39,306.72 and 15,736.87 is: 21,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.55 : 39,306.72 = 15,736.87 : x
  2. Step 2: Convert to fraction form
    28,483.55/39,306.72 = 15,736.87/x
  3. Step 3: Cross multiply
    28,483.55x = 39,306.72 × 15,736.87
  4. Step 4: Simplify right side
    28,483.55x = 618,564,541.29
  5. Step 5: Solve for x
    x = 618,564,541.29/28,483.55
  6. Step 6: Final answer
    x = 21,716.55

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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.