Home / 28,498.86-39,328.33-15,923.61

Finding the Fourth Proportional to 28,498.86, 39,328.33 and 15,923.61

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Solution

The fourth proportional to 28,498.86, 39,328.33 and 15,923.61 is: 21,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.86 : 39,328.33 = 15,923.61 : x
  2. Step 2: Convert to fraction form
    28,498.86/39,328.33 = 15,923.61/x
  3. Step 3: Cross multiply
    28,498.86x = 39,328.33 × 15,923.61
  4. Step 4: Simplify right side
    28,498.86x = 626,248,988.87
  5. Step 5: Solve for x
    x = 626,248,988.87/28,498.86
  6. Step 6: Final answer
    x = 21,974.53

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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.