Home / 30,223.32-45,348.84-13,587.72

Finding the Fourth Proportional to 30,223.32, 45,348.84 and 13,587.72

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Solution

The fourth proportional to 30,223.32, 45,348.84 and 13,587.72 is: 20,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.32 : 45,348.84 = 13,587.72 : x
  2. Step 2: Convert to fraction form
    30,223.32/45,348.84 = 13,587.72/x
  3. Step 3: Cross multiply
    30,223.32x = 45,348.84 × 13,587.72
  4. Step 4: Simplify right side
    30,223.32x = 616,187,340.24
  5. Step 5: Solve for x
    x = 616,187,340.24/30,223.32
  6. Step 6: Final answer
    x = 20,387.81

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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.