Home / 47,832.96-65,990.40-30,835.20

Finding the Fourth Proportional to 47,832.96, 65,990.40 and 30,835.20

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Solution

The fourth proportional to 47,832.96, 65,990.40 and 30,835.20 is: 42,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,832.96 : 65,990.40 = 30,835.20 : x
  2. Step 2: Convert to fraction form
    47,832.96/65,990.40 = 30,835.20/x
  3. Step 3: Cross multiply
    47,832.96x = 65,990.40 × 30,835.20
  4. Step 4: Simplify right side
    47,832.96x = 2,034,827,182.08
  5. Step 5: Solve for x
    x = 2,034,827,182.08/47,832.96
  6. Step 6: Final answer
    x = 42,540.27

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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.