Home / 28,276.98-42,412.23-8,550.78

Finding the Fourth Proportional to 28,276.98, 42,412.23 and 8,550.78

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Solution

The fourth proportional to 28,276.98, 42,412.23 and 8,550.78 is: 12,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.98 : 42,412.23 = 8,550.78 : x
  2. Step 2: Convert to fraction form
    28,276.98/42,412.23 = 8,550.78/x
  3. Step 3: Cross multiply
    28,276.98x = 42,412.23 × 8,550.78
  4. Step 4: Simplify right side
    28,276.98x = 362,657,648.04
  5. Step 5: Solve for x
    x = 362,657,648.04/28,276.98
  6. Step 6: Final answer
    x = 12,825.19

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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.