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Finding the Fourth Proportional to 25,955, 35,818.30 and 15,345.62

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Solution

The fourth proportional to 25,955, 35,818.30 and 15,345.62 is: 21,177.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,955 : 35,818.30 = 15,345.62 : x
  2. Step 2: Convert to fraction form
    25,955/35,818.30 = 15,345.62/x
  3. Step 3: Cross multiply
    25,955x = 35,818.30 × 15,345.62
  4. Step 4: Simplify right side
    25,955x = 549,654,020.85
  5. Step 5: Solve for x
    x = 549,654,020.85/25,955
  6. Step 6: Final answer
    x = 21,177.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.