Home / 28,856.10-43,285.23-8,079.06

Finding the Fourth Proportional to 28,856.10, 43,285.23 and 8,079.06

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Solution

The fourth proportional to 28,856.10, 43,285.23 and 8,079.06 is: 12,118.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.10 : 43,285.23 = 8,079.06 : x
  2. Step 2: Convert to fraction form
    28,856.10/43,285.23 = 8,079.06/x
  3. Step 3: Cross multiply
    28,856.10x = 43,285.23 × 8,079.06
  4. Step 4: Simplify right side
    28,856.10x = 349,703,970.28
  5. Step 5: Solve for x
    x = 349,703,970.28/28,856.10
  6. Step 6: Final answer
    x = 12,118.89

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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.