Home / 20,421.79-30,658.61-17,363.23

Finding the Fourth Proportional to 20,421.79, 30,658.61 and 17,363.23

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Solution

The fourth proportional to 20,421.79, 30,658.61 and 17,363.23 is: 26,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421.79 : 30,658.61 = 17,363.23 : x
  2. Step 2: Convert to fraction form
    20,421.79/30,658.61 = 17,363.23/x
  3. Step 3: Cross multiply
    20,421.79x = 30,658.61 × 17,363.23
  4. Step 4: Simplify right side
    20,421.79x = 532,332,496.91
  5. Step 5: Solve for x
    x = 532,332,496.91/20,421.79
  6. Step 6: Final answer
    x = 26,066.89

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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.