Home / 40,837.01-61,242.55-13,128.53

Finding the Fourth Proportional to 40,837.01, 61,242.55 and 13,128.53

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Solution

The fourth proportional to 40,837.01, 61,242.55 and 13,128.53 is: 19,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,837.01 : 61,242.55 = 13,128.53 : x
  2. Step 2: Convert to fraction form
    40,837.01/61,242.55 = 13,128.53/x
  3. Step 3: Cross multiply
    40,837.01x = 61,242.55 × 13,128.53
  4. Step 4: Simplify right side
    40,837.01x = 804,024,654.95
  5. Step 5: Solve for x
    x = 804,024,654.95/40,837.01
  6. Step 6: Final answer
    x = 19,688.63

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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.