Home / 40,999.04-61,507.76-12,538.48

Finding the Fourth Proportional to 40,999.04, 61,507.76 and 12,538.48

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Solution

The fourth proportional to 40,999.04, 61,507.76 and 12,538.48 is: 18,810.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,999.04 : 61,507.76 = 12,538.48 : x
  2. Step 2: Convert to fraction form
    40,999.04/61,507.76 = 12,538.48/x
  3. Step 3: Cross multiply
    40,999.04x = 61,507.76 × 12,538.48
  4. Step 4: Simplify right side
    40,999.04x = 771,213,818.60
  5. Step 5: Solve for x
    x = 771,213,818.60/40,999.04
  6. Step 6: Final answer
    x = 18,810.53

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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.