Home / 34,808.90-47,999.98-20,659.02

Finding the Fourth Proportional to 34,808.90, 47,999.98 and 20,659.02

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Solution

The fourth proportional to 34,808.90, 47,999.98 and 20,659.02 is: 28,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,808.90 : 47,999.98 = 20,659.02 : x
  2. Step 2: Convert to fraction form
    34,808.90/47,999.98 = 20,659.02/x
  3. Step 3: Cross multiply
    34,808.90x = 47,999.98 × 20,659.02
  4. Step 4: Simplify right side
    34,808.90x = 991,632,546.82
  5. Step 5: Solve for x
    x = 991,632,546.82/34,808.90
  6. Step 6: Final answer
    x = 28,487.90

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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.