Home / 43,889.26-65,870.75-18,948.15

Finding the Fourth Proportional to 43,889.26, 65,870.75 and 18,948.15

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Solution

The fourth proportional to 43,889.26, 65,870.75 and 18,948.15 is: 28,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,889.26 : 65,870.75 = 18,948.15 : x
  2. Step 2: Convert to fraction form
    43,889.26/65,870.75 = 18,948.15/x
  3. Step 3: Cross multiply
    43,889.26x = 65,870.75 × 18,948.15
  4. Step 4: Simplify right side
    43,889.26x = 1,248,128,851.61
  5. Step 5: Solve for x
    x = 1,248,128,851.61/43,889.26
  6. Step 6: Final answer
    x = 28,438.14

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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.