Home / 38,394.80-52,984.20-21,627.92

Finding the Fourth Proportional to 38,394.80, 52,984.20 and 21,627.92

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Solution

The fourth proportional to 38,394.80, 52,984.20 and 21,627.92 is: 29,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,394.80 : 52,984.20 = 21,627.92 : x
  2. Step 2: Convert to fraction form
    38,394.80/52,984.20 = 21,627.92/x
  3. Step 3: Cross multiply
    38,394.80x = 52,984.20 × 21,627.92
  4. Step 4: Simplify right side
    38,394.80x = 1,145,938,038.86
  5. Step 5: Solve for x
    x = 1,145,938,038.86/38,394.80
  6. Step 6: Final answer
    x = 29,846.18

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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.