Home / 51,037.49-76,478.28-21,439.15

Finding the Fourth Proportional to 51,037.49, 76,478.28 and 21,439.15

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Solution

The fourth proportional to 51,037.49, 76,478.28 and 21,439.15 is: 32,125.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.49 : 76,478.28 = 21,439.15 : x
  2. Step 2: Convert to fraction form
    51,037.49/76,478.28 = 21,439.15/x
  3. Step 3: Cross multiply
    51,037.49x = 76,478.28 × 21,439.15
  4. Step 4: Simplify right side
    51,037.49x = 1,639,629,045.07
  5. Step 5: Solve for x
    x = 1,639,629,045.07/51,037.49
  6. Step 6: Final answer
    x = 32,125.97

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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.