Home / 25,242.03-34,828.89-15,805.13

Finding the Fourth Proportional to 25,242.03, 34,828.89 and 15,805.13

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Solution

The fourth proportional to 25,242.03, 34,828.89 and 15,805.13 is: 21,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,242.03 : 34,828.89 = 15,805.13 : x
  2. Step 2: Convert to fraction form
    25,242.03/34,828.89 = 15,805.13/x
  3. Step 3: Cross multiply
    25,242.03x = 34,828.89 × 15,805.13
  4. Step 4: Simplify right side
    25,242.03x = 550,474,900.79
  5. Step 5: Solve for x
    x = 550,474,900.79/25,242.03
  6. Step 6: Final answer
    x = 21,807.87

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1.5x scale

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.