Home / 57,870.24-86,806.08-18,427.20

Finding the Fourth Proportional to 57,870.24, 86,806.08 and 18,427.20

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Solution

The fourth proportional to 57,870.24, 86,806.08 and 18,427.20 is: 27,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,870.24 : 86,806.08 = 18,427.20 : x
  2. Step 2: Convert to fraction form
    57,870.24/86,806.08 = 18,427.20/x
  3. Step 3: Cross multiply
    57,870.24x = 86,806.08 × 18,427.20
  4. Step 4: Simplify right side
    57,870.24x = 1,599,592,997.38
  5. Step 5: Solve for x
    x = 1,599,592,997.38/57,870.24
  6. Step 6: Final answer
    x = 27,641.03

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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.