Home / 38,223.45-52,746.61-21,228.78

Finding the Fourth Proportional to 38,223.45, 52,746.61 and 21,228.78

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Solution

The fourth proportional to 38,223.45, 52,746.61 and 21,228.78 is: 29,294.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,223.45 : 52,746.61 = 21,228.78 : x
  2. Step 2: Convert to fraction form
    38,223.45/52,746.61 = 21,228.78/x
  3. Step 3: Cross multiply
    38,223.45x = 52,746.61 × 21,228.78
  4. Step 4: Simplify right side
    38,223.45x = 1,119,745,829.36
  5. Step 5: Solve for x
    x = 1,119,745,829.36/38,223.45
  6. Step 6: Final answer
    x = 29,294.73

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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.