Home / 28,045.94-38,703.42-15,299.16

Finding the Fourth Proportional to 28,045.94, 38,703.42 and 15,299.16

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Solution

The fourth proportional to 28,045.94, 38,703.42 and 15,299.16 is: 21,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.94 : 38,703.42 = 15,299.16 : x
  2. Step 2: Convert to fraction form
    28,045.94/38,703.42 = 15,299.16/x
  3. Step 3: Cross multiply
    28,045.94x = 38,703.42 × 15,299.16
  4. Step 4: Simplify right side
    28,045.94x = 592,129,815.13
  5. Step 5: Solve for x
    x = 592,129,815.13/28,045.94
  6. Step 6: Final answer
    x = 21,112.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.