Home / 39,420.24-54,404.52-22,430.64

Finding the Fourth Proportional to 39,420.24, 54,404.52 and 22,430.64

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Solution

The fourth proportional to 39,420.24, 54,404.52 and 22,430.64 is: 30,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.24 : 54,404.52 = 22,430.64 : x
  2. Step 2: Convert to fraction form
    39,420.24/54,404.52 = 22,430.64/x
  3. Step 3: Cross multiply
    39,420.24x = 54,404.52 × 22,430.64
  4. Step 4: Simplify right side
    39,420.24x = 1,220,328,202.49
  5. Step 5: Solve for x
    x = 1,220,328,202.49/39,420.24
  6. Step 6: Final answer
    x = 30,956.89

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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.