Home / 28,840.10-43,260.15-9,124.70

Finding the Fourth Proportional to 28,840.10, 43,260.15 and 9,124.70

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Solution

The fourth proportional to 28,840.10, 43,260.15 and 9,124.70 is: 13,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.10 : 43,260.15 = 9,124.70 : x
  2. Step 2: Convert to fraction form
    28,840.10/43,260.15 = 9,124.70/x
  3. Step 3: Cross multiply
    28,840.10x = 43,260.15 × 9,124.70
  4. Step 4: Simplify right side
    28,840.10x = 394,735,890.71
  5. Step 5: Solve for x
    x = 394,735,890.71/28,840.10
  6. Step 6: Final answer
    x = 13,687.05

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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.