Home / 20,336.46-28,062.95-11,261.51

Finding the Fourth Proportional to 20,336.46, 28,062.95 and 11,261.51

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Solution

The fourth proportional to 20,336.46, 28,062.95 and 11,261.51 is: 15,540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.46 : 28,062.95 = 11,261.51 : x
  2. Step 2: Convert to fraction form
    20,336.46/28,062.95 = 11,261.51/x
  3. Step 3: Cross multiply
    20,336.46x = 28,062.95 × 11,261.51
  4. Step 4: Simplify right side
    20,336.46x = 316,031,192.05
  5. Step 5: Solve for x
    x = 316,031,192.05/20,336.46
  6. Step 6: Final answer
    x = 15,540.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.