Home / 31,345.74-46,957.02-18,170.40

Finding the Fourth Proportional to 31,345.74, 46,957.02 and 18,170.40

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Solution

The fourth proportional to 31,345.74, 46,957.02 and 18,170.40 is: 27,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345.74 : 46,957.02 = 18,170.40 : x
  2. Step 2: Convert to fraction form
    31,345.74/46,957.02 = 18,170.40/x
  3. Step 3: Cross multiply
    31,345.74x = 46,957.02 × 18,170.40
  4. Step 4: Simplify right side
    31,345.74x = 853,227,836.21
  5. Step 5: Solve for x
    x = 853,227,836.21/31,345.74
  6. Step 6: Final answer
    x = 27,219.90

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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.