Home / 31,832.32-47,769.21-12,111.04

Finding the Fourth Proportional to 31,832.32, 47,769.21 and 12,111.04

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Solution

The fourth proportional to 31,832.32, 47,769.21 and 12,111.04 is: 18,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,832.32 : 47,769.21 = 12,111.04 : x
  2. Step 2: Convert to fraction form
    31,832.32/47,769.21 = 12,111.04/x
  3. Step 3: Cross multiply
    31,832.32x = 47,769.21 × 12,111.04
  4. Step 4: Simplify right side
    31,832.32x = 578,534,956.05
  5. Step 5: Solve for x
    x = 578,534,956.05/31,832.32
  6. Step 6: Final answer
    x = 18,174.45

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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.