Home / 28,712.26-43,070.85-7,935.76

Finding the Fourth Proportional to 28,712.26, 43,070.85 and 7,935.76

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Solution

The fourth proportional to 28,712.26, 43,070.85 and 7,935.76 is: 11,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.26 : 43,070.85 = 7,935.76 : x
  2. Step 2: Convert to fraction form
    28,712.26/43,070.85 = 7,935.76/x
  3. Step 3: Cross multiply
    28,712.26x = 43,070.85 × 7,935.76
  4. Step 4: Simplify right side
    28,712.26x = 341,799,928.60
  5. Step 5: Solve for x
    x = 341,799,928.60/28,712.26
  6. Step 6: Final answer
    x = 11,904.32

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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.