Home / 28,479.95-39,301.52-15,732.93

Finding the Fourth Proportional to 28,479.95, 39,301.52 and 15,732.93

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Solution

The fourth proportional to 28,479.95, 39,301.52 and 15,732.93 is: 21,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.95 : 39,301.52 = 15,732.93 : x
  2. Step 2: Convert to fraction form
    28,479.95/39,301.52 = 15,732.93/x
  3. Step 3: Cross multiply
    28,479.95x = 39,301.52 × 15,732.93
  4. Step 4: Simplify right side
    28,479.95x = 618,328,063.05
  5. Step 5: Solve for x
    x = 618,328,063.05/28,479.95
  6. Step 6: Final answer
    x = 21,711.00

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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.