Home / 28,672.17-42,971.81-15,535.59

Finding the Fourth Proportional to 28,672.17, 42,971.81 and 15,535.59

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Solution

The fourth proportional to 28,672.17, 42,971.81 and 15,535.59 is: 23,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.17 : 42,971.81 = 15,535.59 : x
  2. Step 2: Convert to fraction form
    28,672.17/42,971.81 = 15,535.59/x
  3. Step 3: Cross multiply
    28,672.17x = 42,971.81 × 15,535.59
  4. Step 4: Simplify right side
    28,672.17x = 667,592,344.04
  5. Step 5: Solve for x
    x = 667,592,344.04/28,672.17
  6. Step 6: Final answer
    x = 23,283.64

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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.