Home / 28,289.75-42,429.15-26,884.80

Finding the Fourth Proportional to 28,289.75, 42,429.15 and 26,884.80

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Solution

The fourth proportional to 28,289.75, 42,429.15 and 26,884.80 is: 40,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.75 : 42,429.15 = 26,884.80 : x
  2. Step 2: Convert to fraction form
    28,289.75/42,429.15 = 26,884.80/x
  3. Step 3: Cross multiply
    28,289.75x = 42,429.15 × 26,884.80
  4. Step 4: Simplify right side
    28,289.75x = 1,140,699,211.92
  5. Step 5: Solve for x
    x = 1,140,699,211.92/28,289.75
  6. Step 6: Final answer
    x = 40,322.00

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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.