Home / 47,948.54-71,922.75-12,888.20

Finding the Fourth Proportional to 47,948.54, 71,922.75 and 12,888.20

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Solution

The fourth proportional to 47,948.54, 71,922.75 and 12,888.20 is: 19,332.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,948.54 : 71,922.75 = 12,888.20 : x
  2. Step 2: Convert to fraction form
    47,948.54/71,922.75 = 12,888.20/x
  3. Step 3: Cross multiply
    47,948.54x = 71,922.75 × 12,888.20
  4. Step 4: Simplify right side
    47,948.54x = 926,954,786.55
  5. Step 5: Solve for x
    x = 926,954,786.55/47,948.54
  6. Step 6: Final answer
    x = 19,332.28

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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.