Home / 31,015.80-46,545.30-13,498.20

Finding the Fourth Proportional to 31,015.80, 46,545.30 and 13,498.20

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Solution

The fourth proportional to 31,015.80, 46,545.30 and 13,498.20 is: 20,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,015.80 : 46,545.30 = 13,498.20 : x
  2. Step 2: Convert to fraction form
    31,015.80/46,545.30 = 13,498.20/x
  3. Step 3: Cross multiply
    31,015.80x = 46,545.30 × 13,498.20
  4. Step 4: Simplify right side
    31,015.80x = 628,277,768.46
  5. Step 5: Solve for x
    x = 628,277,768.46/31,015.80
  6. Step 6: Final answer
    x = 20,256.70

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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.