Home / 28,247.94-42,537.13-20,904.22

Finding the Fourth Proportional to 28,247.94, 42,537.13 and 20,904.22

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Solution

The fourth proportional to 28,247.94, 42,537.13 and 20,904.22 is: 31,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.94 : 42,537.13 = 20,904.22 : x
  2. Step 2: Convert to fraction form
    28,247.94/42,537.13 = 20,904.22/x
  3. Step 3: Cross multiply
    28,247.94x = 42,537.13 × 20,904.22
  4. Step 4: Simplify right side
    28,247.94x = 889,205,523.69
  5. Step 5: Solve for x
    x = 889,205,523.69/28,247.94
  6. Step 6: Final answer
    x = 31,478.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.