Home / 22,620.51-31,215.56-13,666.44

Finding the Fourth Proportional to 22,620.51, 31,215.56 and 13,666.44

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Solution

The fourth proportional to 22,620.51, 31,215.56 and 13,666.44 is: 18,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.51 : 31,215.56 = 13,666.44 : x
  2. Step 2: Convert to fraction form
    22,620.51/31,215.56 = 13,666.44/x
  3. Step 3: Cross multiply
    22,620.51x = 31,215.56 × 13,666.44
  4. Step 4: Simplify right side
    22,620.51x = 426,605,509.47
  5. Step 5: Solve for x
    x = 426,605,509.47/22,620.51
  6. Step 6: Final answer
    x = 18,859.23

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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.