Home / 28,582.50-39,419.49-22,603.78

Finding the Fourth Proportional to 28,582.50, 39,419.49 and 22,603.78

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Solution

The fourth proportional to 28,582.50, 39,419.49 and 22,603.78 is: 31,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.50 : 39,419.49 = 22,603.78 : x
  2. Step 2: Convert to fraction form
    28,582.50/39,419.49 = 22,603.78/x
  3. Step 3: Cross multiply
    28,582.50x = 39,419.49 × 22,603.78
  4. Step 4: Simplify right side
    28,582.50x = 891,029,479.67
  5. Step 5: Solve for x
    x = 891,029,479.67/28,582.50
  6. Step 6: Final answer
    x = 31,173.95

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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.