Home / 40,837.61-61,243.44-13,129.13

Finding the Fourth Proportional to 40,837.61, 61,243.44 and 13,129.13

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Solution

The fourth proportional to 40,837.61, 61,243.44 and 13,129.13 is: 19,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,837.61 : 61,243.44 = 13,129.13 : x
  2. Step 2: Convert to fraction form
    40,837.61/61,243.44 = 13,129.13/x
  3. Step 3: Cross multiply
    40,837.61x = 61,243.44 × 13,129.13
  4. Step 4: Simplify right side
    40,837.61x = 804,072,779.19
  5. Step 5: Solve for x
    x = 804,072,779.19/40,837.61
  6. Step 6: Final answer
    x = 19,689.52

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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.