Home / 28,006.77-42,010.02-8,285.43

Finding the Fourth Proportional to 28,006.77, 42,010.02 and 8,285.43

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Solution

The fourth proportional to 28,006.77, 42,010.02 and 8,285.43 is: 12,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.77 : 42,010.02 = 8,285.43 : x
  2. Step 2: Convert to fraction form
    28,006.77/42,010.02 = 8,285.43/x
  3. Step 3: Cross multiply
    28,006.77x = 42,010.02 × 8,285.43
  4. Step 4: Simplify right side
    28,006.77x = 348,071,080.01
  5. Step 5: Solve for x
    x = 348,071,080.01/28,006.77
  6. Step 6: Final answer
    x = 12,428.11

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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.