Home / 31,302.32-46,938.62-18,158.72

Finding the Fourth Proportional to 31,302.32, 46,938.62 and 18,158.72

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Solution

The fourth proportional to 31,302.32, 46,938.62 and 18,158.72 is: 27,229.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,302.32 : 46,938.62 = 18,158.72 : x
  2. Step 2: Convert to fraction form
    31,302.32/46,938.62 = 18,158.72/x
  3. Step 3: Cross multiply
    31,302.32x = 46,938.62 × 18,158.72
  4. Step 4: Simplify right side
    31,302.32x = 852,345,068.47
  5. Step 5: Solve for x
    x = 852,345,068.47/31,302.32
  6. Step 6: Final answer
    x = 27,229.46

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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.