Home / 34,064.19-47,012.45-20,635.20

Finding the Fourth Proportional to 34,064.19, 47,012.45 and 20,635.20

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Solution

The fourth proportional to 34,064.19, 47,012.45 and 20,635.20 is: 28,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,064.19 : 47,012.45 = 20,635.20 : x
  2. Step 2: Convert to fraction form
    34,064.19/47,012.45 = 20,635.20/x
  3. Step 3: Cross multiply
    34,064.19x = 47,012.45 × 20,635.20
  4. Step 4: Simplify right side
    34,064.19x = 970,111,205.06
  5. Step 5: Solve for x
    x = 970,111,205.06/34,064.19
  6. Step 6: Final answer
    x = 28,478.92

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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.