Home / 28,275.28-42,429.64-10,759.76

Finding the Fourth Proportional to 28,275.28, 42,429.64 and 10,759.76

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Solution

The fourth proportional to 28,275.28, 42,429.64 and 10,759.76 is: 16,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275.28 : 42,429.64 = 10,759.76 : x
  2. Step 2: Convert to fraction form
    28,275.28/42,429.64 = 10,759.76/x
  3. Step 3: Cross multiply
    28,275.28x = 42,429.64 × 10,759.76
  4. Step 4: Simplify right side
    28,275.28x = 456,532,743.29
  5. Step 5: Solve for x
    x = 456,532,743.29/28,275.28
  6. Step 6: Final answer
    x = 16,146.00

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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.