Home / 23,148.95-31,945.39-13,080.65

Finding the Fourth Proportional to 23,148.95, 31,945.39 and 13,080.65

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Solution

The fourth proportional to 23,148.95, 31,945.39 and 13,080.65 is: 18,051.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,148.95 : 31,945.39 = 13,080.65 : x
  2. Step 2: Convert to fraction form
    23,148.95/31,945.39 = 13,080.65/x
  3. Step 3: Cross multiply
    23,148.95x = 31,945.39 × 13,080.65
  4. Step 4: Simplify right side
    23,148.95x = 417,866,465.70
  5. Step 5: Solve for x
    x = 417,866,465.70/23,148.95
  6. Step 6: Final answer
    x = 18,051.21

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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.