Home / 25,490.23-35,162.71-15,421.93

Finding the Fourth Proportional to 25,490.23, 35,162.71 and 15,421.93

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Solution

The fourth proportional to 25,490.23, 35,162.71 and 15,421.93 is: 21,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,490.23 : 35,162.71 = 15,421.93 : x
  2. Step 2: Convert to fraction form
    25,490.23/35,162.71 = 15,421.93/x
  3. Step 3: Cross multiply
    25,490.23x = 35,162.71 × 15,421.93
  4. Step 4: Simplify right side
    25,490.23x = 542,276,725.77
  5. Step 5: Solve for x
    x = 542,276,725.77/25,490.23
  6. Step 6: Final answer
    x = 21,273.91

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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.