Home / 43,402.08-65,102.93-18,438.30

Finding the Fourth Proportional to 43,402.08, 65,102.93 and 18,438.30

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Solution

The fourth proportional to 43,402.08, 65,102.93 and 18,438.30 is: 27,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,402.08 : 65,102.93 = 18,438.30 : x
  2. Step 2: Convert to fraction form
    43,402.08/65,102.93 = 18,438.30/x
  3. Step 3: Cross multiply
    43,402.08x = 65,102.93 × 18,438.30
  4. Step 4: Simplify right side
    43,402.08x = 1,200,387,354.22
  5. Step 5: Solve for x
    x = 1,200,387,354.22/43,402.08
  6. Step 6: Final answer
    x = 27,657.37

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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.