Home / 28,897.12-43,345.68-11,375.20

Finding the Fourth Proportional to 28,897.12, 43,345.68 and 11,375.20

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Solution

The fourth proportional to 28,897.12, 43,345.68 and 11,375.20 is: 17,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.12 : 43,345.68 = 11,375.20 : x
  2. Step 2: Convert to fraction form
    28,897.12/43,345.68 = 11,375.20/x
  3. Step 3: Cross multiply
    28,897.12x = 43,345.68 × 11,375.20
  4. Step 4: Simplify right side
    28,897.12x = 493,065,779.14
  5. Step 5: Solve for x
    x = 493,065,779.14/28,897.12
  6. Step 6: Final answer
    x = 17,062.80

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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.