Home / 19,981.89-27,574.65-11,029.68

Finding the Fourth Proportional to 19,981.89, 27,574.65 and 11,029.68

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Solution

The fourth proportional to 19,981.89, 27,574.65 and 11,029.68 is: 15,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.89 : 27,574.65 = 11,029.68 : x
  2. Step 2: Convert to fraction form
    19,981.89/27,574.65 = 11,029.68/x
  3. Step 3: Cross multiply
    19,981.89x = 27,574.65 × 11,029.68
  4. Step 4: Simplify right side
    19,981.89x = 304,139,565.61
  5. Step 5: Solve for x
    x = 304,139,565.61/19,981.89
  6. Step 6: Final answer
    x = 15,220.76

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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.