Home / 28,282.02-42,423.56-8,560.50

Finding the Fourth Proportional to 28,282.02, 42,423.56 and 8,560.50

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Solution

The fourth proportional to 28,282.02, 42,423.56 and 8,560.50 is: 12,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.02 : 42,423.56 = 8,560.50 : x
  2. Step 2: Convert to fraction form
    28,282.02/42,423.56 = 8,560.50/x
  3. Step 3: Cross multiply
    28,282.02x = 42,423.56 × 8,560.50
  4. Step 4: Simplify right side
    28,282.02x = 363,166,694.66
  5. Step 5: Solve for x
    x = 363,166,694.66/28,282.02
  6. Step 6: Final answer
    x = 12,840.91

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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.