Home / 32,731.86-45,170.16-18,392.30

Finding the Fourth Proportional to 32,731.86, 45,170.16 and 18,392.30

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Solution

The fourth proportional to 32,731.86, 45,170.16 and 18,392.30 is: 25,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,731.86 : 45,170.16 = 18,392.30 : x
  2. Step 2: Convert to fraction form
    32,731.86/45,170.16 = 18,392.30/x
  3. Step 3: Cross multiply
    32,731.86x = 45,170.16 × 18,392.30
  4. Step 4: Simplify right side
    32,731.86x = 830,783,008.33
  5. Step 5: Solve for x
    x = 830,783,008.33/32,731.86
  6. Step 6: Final answer
    x = 25,381.48

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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.