Home / 19,726.31-27,221.10-10,771.99

Finding the Fourth Proportional to 19,726.31, 27,221.10 and 10,771.99

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Solution

The fourth proportional to 19,726.31, 27,221.10 and 10,771.99 is: 14,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.31 : 27,221.10 = 10,771.99 : x
  2. Step 2: Convert to fraction form
    19,726.31/27,221.10 = 10,771.99/x
  3. Step 3: Cross multiply
    19,726.31x = 27,221.10 × 10,771.99
  4. Step 4: Simplify right side
    19,726.31x = 293,225,416.99
  5. Step 5: Solve for x
    x = 293,225,416.99/19,726.31
  6. Step 6: Final answer
    x = 14,864.69

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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.