Home / 18,736.83-28,114.95-13,585.23

Finding the Fourth Proportional to 18,736.83, 28,114.95 and 13,585.23

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Solution

The fourth proportional to 18,736.83, 28,114.95 and 13,585.23 is: 20,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.83 : 28,114.95 = 13,585.23 : x
  2. Step 2: Convert to fraction form
    18,736.83/28,114.95 = 13,585.23/x
  3. Step 3: Cross multiply
    18,736.83x = 28,114.95 × 13,585.23
  4. Step 4: Simplify right side
    18,736.83x = 381,948,062.19
  5. Step 5: Solve for x
    x = 381,948,062.19/18,736.83
  6. Step 6: Final answer
    x = 20,384.88

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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.