Home / 15,083.78-22,624.65-3,990.23

Finding the Fourth Proportional to 15,083.78, 22,624.65 and 3,990.23

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Solution

The fourth proportional to 15,083.78, 22,624.65 and 3,990.23 is: 5,985.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.78 : 22,624.65 = 3,990.23 : x
  2. Step 2: Convert to fraction form
    15,083.78/22,624.65 = 3,990.23/x
  3. Step 3: Cross multiply
    15,083.78x = 22,624.65 × 3,990.23
  4. Step 4: Simplify right side
    15,083.78x = 90,277,444.05
  5. Step 5: Solve for x
    x = 90,277,444.05/15,083.78
  6. Step 6: Final answer
    x = 5,985.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.