Home / 25,860.18-38,823.11-21,989.19

Finding the Fourth Proportional to 25,860.18, 38,823.11 and 21,989.19

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Solution

The fourth proportional to 25,860.18, 38,823.11 and 21,989.19 is: 33,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.18 : 38,823.11 = 21,989.19 : x
  2. Step 2: Convert to fraction form
    25,860.18/38,823.11 = 21,989.19/x
  3. Step 3: Cross multiply
    25,860.18x = 38,823.11 × 21,989.19
  4. Step 4: Simplify right side
    25,860.18x = 853,688,742.18
  5. Step 5: Solve for x
    x = 853,688,742.18/25,860.18
  6. Step 6: Final answer
    x = 33,011.71

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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.