Home / 19,990.86-27,587.61-11,038.35

Finding the Fourth Proportional to 19,990.86, 27,587.61 and 11,038.35

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Solution

The fourth proportional to 19,990.86, 27,587.61 and 11,038.35 is: 15,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.86 : 27,587.61 = 11,038.35 : x
  2. Step 2: Convert to fraction form
    19,990.86/27,587.61 = 11,038.35/x
  3. Step 3: Cross multiply
    19,990.86x = 27,587.61 × 11,038.35
  4. Step 4: Simplify right side
    19,990.86x = 304,521,694.84
  5. Step 5: Solve for x
    x = 304,521,694.84/19,990.86
  6. Step 6: Final answer
    x = 15,233.05

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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.