Home / 39,421.23-54,399.12-22,423.20

Finding the Fourth Proportional to 39,421.23, 54,399.12 and 22,423.20

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Solution

The fourth proportional to 39,421.23, 54,399.12 and 22,423.20 is: 30,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,421.23 : 54,399.12 = 22,423.20 : x
  2. Step 2: Convert to fraction form
    39,421.23/54,399.12 = 22,423.20/x
  3. Step 3: Cross multiply
    39,421.23x = 54,399.12 × 22,423.20
  4. Step 4: Simplify right side
    39,421.23x = 1,219,802,347.58
  5. Step 5: Solve for x
    x = 1,219,802,347.58/39,421.23
  6. Step 6: Final answer
    x = 30,942.78

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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.