Home / 47,217.60-70,826.40-13,938.12

Finding the Fourth Proportional to 47,217.60, 70,826.40 and 13,938.12

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Solution

The fourth proportional to 47,217.60, 70,826.40 and 13,938.12 is: 20,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,217.60 : 70,826.40 = 13,938.12 : x
  2. Step 2: Convert to fraction form
    47,217.60/70,826.40 = 13,938.12/x
  3. Step 3: Cross multiply
    47,217.60x = 70,826.40 × 13,938.12
  4. Step 4: Simplify right side
    47,217.60x = 987,186,862.37
  5. Step 5: Solve for x
    x = 987,186,862.37/47,217.60
  6. Step 6: Final answer
    x = 20,907.18

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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.