Home / 31,243.10-46,864.65-20,162.30

Finding the Fourth Proportional to 31,243.10, 46,864.65 and 20,162.30

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Solution

The fourth proportional to 31,243.10, 46,864.65 and 20,162.30 is: 30,243.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.10 : 46,864.65 = 20,162.30 : x
  2. Step 2: Convert to fraction form
    31,243.10/46,864.65 = 20,162.30/x
  3. Step 3: Cross multiply
    31,243.10x = 46,864.65 × 20,162.30
  4. Step 4: Simplify right side
    31,243.10x = 944,899,132.70
  5. Step 5: Solve for x
    x = 944,899,132.70/31,243.10
  6. Step 6: Final answer
    x = 30,243.45

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1.5x scale

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.