Home / 31,315.30-46,920.12-15,499.24

Finding the Fourth Proportional to 31,315.30, 46,920.12 and 15,499.24

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Solution

The fourth proportional to 31,315.30, 46,920.12 and 15,499.24 is: 23,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.30 : 46,920.12 = 15,499.24 : x
  2. Step 2: Convert to fraction form
    31,315.30/46,920.12 = 15,499.24/x
  3. Step 3: Cross multiply
    31,315.30x = 46,920.12 × 15,499.24
  4. Step 4: Simplify right side
    31,315.30x = 727,226,200.71
  5. Step 5: Solve for x
    x = 727,226,200.71/31,315.30
  6. Step 6: Final answer
    x = 23,222.71

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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.