Home / 28,006.08-42,017.32-8,285.16

Finding the Fourth Proportional to 28,006.08, 42,017.32 and 8,285.16

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Solution

The fourth proportional to 28,006.08, 42,017.32 and 8,285.16 is: 12,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.08 : 42,017.32 = 8,285.16 : x
  2. Step 2: Convert to fraction form
    28,006.08/42,017.32 = 8,285.16/x
  3. Step 3: Cross multiply
    28,006.08x = 42,017.32 × 8,285.16
  4. Step 4: Simplify right side
    28,006.08x = 348,120,218.97
  5. Step 5: Solve for x
    x = 348,120,218.97/28,006.08
  6. Step 6: Final answer
    x = 12,430.17

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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.