Home / 47,255.40-70,883.10-20,932.20

Finding the Fourth Proportional to 47,255.40, 70,883.10 and 20,932.20

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Solution

The fourth proportional to 47,255.40, 70,883.10 and 20,932.20 is: 31,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,255.40 : 70,883.10 = 20,932.20 : x
  2. Step 2: Convert to fraction form
    47,255.40/70,883.10 = 20,932.20/x
  3. Step 3: Cross multiply
    47,255.40x = 70,883.10 × 20,932.20
  4. Step 4: Simplify right side
    47,255.40x = 1,483,739,225.82
  5. Step 5: Solve for x
    x = 1,483,739,225.82/47,255.40
  6. Step 6: Final answer
    x = 31,398.30

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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.