Home / 28,760.51-43,140.76-13,178.13

Finding the Fourth Proportional to 28,760.51, 43,140.76 and 13,178.13

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Solution

The fourth proportional to 28,760.51, 43,140.76 and 13,178.13 is: 19,767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.51 : 43,140.76 = 13,178.13 : x
  2. Step 2: Convert to fraction form
    28,760.51/43,140.76 = 13,178.13/x
  3. Step 3: Cross multiply
    28,760.51x = 43,140.76 × 13,178.13
  4. Step 4: Simplify right side
    28,760.51x = 568,514,543.58
  5. Step 5: Solve for x
    x = 568,514,543.58/28,760.51
  6. Step 6: Final answer
    x = 19,767.19

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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.