Home / 22,419.18-30,939.30-13,925.99

Finding the Fourth Proportional to 22,419.18, 30,939.30 and 13,925.99

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Solution

The fourth proportional to 22,419.18, 30,939.30 and 13,925.99 is: 19,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,419.18 : 30,939.30 = 13,925.99 : x
  2. Step 2: Convert to fraction form
    22,419.18/30,939.30 = 13,925.99/x
  3. Step 3: Cross multiply
    22,419.18x = 30,939.30 × 13,925.99
  4. Step 4: Simplify right side
    22,419.18x = 430,860,227.71
  5. Step 5: Solve for x
    x = 430,860,227.71/22,419.18
  6. Step 6: Final answer
    x = 19,218.38

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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.