Home / 28,875.64-43,315.08-8,100.76

Finding the Fourth Proportional to 28,875.64, 43,315.08 and 8,100.76

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Solution

The fourth proportional to 28,875.64, 43,315.08 and 8,100.76 is: 12,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.64 : 43,315.08 = 8,100.76 : x
  2. Step 2: Convert to fraction form
    28,875.64/43,315.08 = 8,100.76/x
  3. Step 3: Cross multiply
    28,875.64x = 43,315.08 × 8,100.76
  4. Step 4: Simplify right side
    28,875.64x = 350,885,067.46
  5. Step 5: Solve for x
    x = 350,885,067.46/28,875.64
  6. Step 6: Final answer
    x = 12,151.59

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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.