Home / 19,990.86-27,587.43-11,038.38

Finding the Fourth Proportional to 19,990.86, 27,587.43 and 11,038.38

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Solution

The fourth proportional to 19,990.86, 27,587.43 and 11,038.38 is: 15,232.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.86 : 27,587.43 = 11,038.38 : x
  2. Step 2: Convert to fraction form
    19,990.86/27,587.43 = 11,038.38/x
  3. Step 3: Cross multiply
    19,990.86x = 27,587.43 × 11,038.38
  4. Step 4: Simplify right side
    19,990.86x = 304,520,535.56
  5. Step 5: Solve for x
    x = 304,520,535.56/19,990.86
  6. Step 6: Final answer
    x = 15,232.99

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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.