Home / 43,458.26-65,186.84-13,875.72

Finding the Fourth Proportional to 43,458.26, 65,186.84 and 13,875.72

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Solution

The fourth proportional to 43,458.26, 65,186.84 and 13,875.72 is: 20,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,458.26 : 65,186.84 = 13,875.72 : x
  2. Step 2: Convert to fraction form
    43,458.26/65,186.84 = 13,875.72/x
  3. Step 3: Cross multiply
    43,458.26x = 65,186.84 × 13,875.72
  4. Step 4: Simplify right side
    43,458.26x = 904,514,339.52
  5. Step 5: Solve for x
    x = 904,514,339.52/43,458.26
  6. Step 6: Final answer
    x = 20,813.40

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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.