Home / 31,315.80-46,920.87-15,499.74

Finding the Fourth Proportional to 31,315.80, 46,920.87 and 15,499.74

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Solution

The fourth proportional to 31,315.80, 46,920.87 and 15,499.74 is: 23,223.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.80 : 46,920.87 = 15,499.74 : x
  2. Step 2: Convert to fraction form
    31,315.80/46,920.87 = 15,499.74/x
  3. Step 3: Cross multiply
    31,315.80x = 46,920.87 × 15,499.74
  4. Step 4: Simplify right side
    31,315.80x = 727,261,285.57
  5. Step 5: Solve for x
    x = 727,261,285.57/31,315.80
  6. Step 6: Final answer
    x = 23,223.46

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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.