Home / 23,720.06-32,730.90-13,109.78

Finding the Fourth Proportional to 23,720.06, 32,730.90 and 13,109.78

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Solution

The fourth proportional to 23,720.06, 32,730.90 and 13,109.78 is: 18,089.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,720.06 : 32,730.90 = 13,109.78 : x
  2. Step 2: Convert to fraction form
    23,720.06/32,730.90 = 13,109.78/x
  3. Step 3: Cross multiply
    23,720.06x = 32,730.90 × 13,109.78
  4. Step 4: Simplify right side
    23,720.06x = 429,094,898.20
  5. Step 5: Solve for x
    x = 429,094,898.20/23,720.06
  6. Step 6: Final answer
    x = 18,089.96

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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.