Home / 28,006.39-42,006.25-10,471.51

Finding the Fourth Proportional to 28,006.39, 42,006.25 and 10,471.51

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Solution

The fourth proportional to 28,006.39, 42,006.25 and 10,471.51 is: 15,706.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.39 : 42,006.25 = 10,471.51 : x
  2. Step 2: Convert to fraction form
    28,006.39/42,006.25 = 10,471.51/x
  3. Step 3: Cross multiply
    28,006.39x = 42,006.25 × 10,471.51
  4. Step 4: Simplify right side
    28,006.39x = 439,868,866.94
  5. Step 5: Solve for x
    x = 439,868,866.94/28,006.39
  6. Step 6: Final answer
    x = 15,706.02

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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.