Home / 22,421.59-30,942-12,350.07

Finding the Fourth Proportional to 22,421.59, 30,942 and 12,350.07

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Solution

The fourth proportional to 22,421.59, 30,942 and 12,350.07 is: 17,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,421.59 : 30,942 = 12,350.07 : x
  2. Step 2: Convert to fraction form
    22,421.59/30,942 = 12,350.07/x
  3. Step 3: Cross multiply
    22,421.59x = 30,942 × 12,350.07
  4. Step 4: Simplify right side
    22,421.59x = 382,135,865.94
  5. Step 5: Solve for x
    x = 382,135,865.94/22,421.59
  6. Step 6: Final answer
    x = 17,043.21

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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.