Home / 25,939.76-38,921.94-15,430.50

Finding the Fourth Proportional to 25,939.76, 38,921.94 and 15,430.50

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Solution

The fourth proportional to 25,939.76, 38,921.94 and 15,430.50 is: 23,153.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,939.76 : 38,921.94 = 15,430.50 : x
  2. Step 2: Convert to fraction form
    25,939.76/38,921.94 = 15,430.50/x
  3. Step 3: Cross multiply
    25,939.76x = 38,921.94 × 15,430.50
  4. Step 4: Simplify right side
    25,939.76x = 600,584,995.17
  5. Step 5: Solve for x
    x = 600,584,995.17/25,939.76
  6. Step 6: Final answer
    x = 23,153.07

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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.