Home / 15,033.12-20,751.52-13,458.48

Finding the Fourth Proportional to 15,033.12, 20,751.52 and 13,458.48

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Solution

The fourth proportional to 15,033.12, 20,751.52 and 13,458.48 is: 18,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.12 : 20,751.52 = 13,458.48 : x
  2. Step 2: Convert to fraction form
    15,033.12/20,751.52 = 13,458.48/x
  3. Step 3: Cross multiply
    15,033.12x = 20,751.52 × 13,458.48
  4. Step 4: Simplify right side
    15,033.12x = 279,283,916.89
  5. Step 5: Solve for x
    x = 279,283,916.89/15,033.12
  6. Step 6: Final answer
    x = 18,577.91

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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.