Home / 36,215.20-54,322.80-28,779.40

Finding the Fourth Proportional to 36,215.20, 54,322.80 and 28,779.40

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Solution

The fourth proportional to 36,215.20, 54,322.80 and 28,779.40 is: 43,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,215.20 : 54,322.80 = 28,779.40 : x
  2. Step 2: Convert to fraction form
    36,215.20/54,322.80 = 28,779.40/x
  3. Step 3: Cross multiply
    36,215.20x = 54,322.80 × 28,779.40
  4. Step 4: Simplify right side
    36,215.20x = 1,563,377,590.32
  5. Step 5: Solve for x
    x = 1,563,377,590.32/36,215.20
  6. Step 6: Final answer
    x = 43,169.10

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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.