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Finding the Fourth Proportional to 27,200.80, 40,779.60 and 14,888.80

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Solution

The fourth proportional to 27,200.80, 40,779.60 and 14,888.80 is: 22,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,200.80 : 40,779.60 = 14,888.80 : x
  2. Step 2: Convert to fraction form
    27,200.80/40,779.60 = 14,888.80/x
  3. Step 3: Cross multiply
    27,200.80x = 40,779.60 × 14,888.80
  4. Step 4: Simplify right side
    27,200.80x = 607,159,308.48
  5. Step 5: Solve for x
    x = 607,159,308.48/27,200.80
  6. Step 6: Final answer
    x = 22,321.38

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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.