Home / 43,302.86-64,956.10-13,720.04

Finding the Fourth Proportional to 43,302.86, 64,956.10 and 13,720.04

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Solution

The fourth proportional to 43,302.86, 64,956.10 and 13,720.04 is: 20,580.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,302.86 : 64,956.10 = 13,720.04 : x
  2. Step 2: Convert to fraction form
    43,302.86/64,956.10 = 13,720.04/x
  3. Step 3: Cross multiply
    43,302.86x = 64,956.10 × 13,720.04
  4. Step 4: Simplify right side
    43,302.86x = 891,200,290.24
  5. Step 5: Solve for x
    x = 891,200,290.24/43,302.86
  6. Step 6: Final answer
    x = 20,580.63

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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.