Home / 19,990.18-27,594.66-13,637.74

Finding the Fourth Proportional to 19,990.18, 27,594.66 and 13,637.74

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Solution

The fourth proportional to 19,990.18, 27,594.66 and 13,637.74 is: 18,825.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.18 : 27,594.66 = 13,637.74 : x
  2. Step 2: Convert to fraction form
    19,990.18/27,594.66 = 13,637.74/x
  3. Step 3: Cross multiply
    19,990.18x = 27,594.66 × 13,637.74
  4. Step 4: Simplify right side
    19,990.18x = 376,328,798.47
  5. Step 5: Solve for x
    x = 376,328,798.47/19,990.18
  6. Step 6: Final answer
    x = 18,825.68

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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.