Home / 22,504.68-31,055.06-13,555.08

Finding the Fourth Proportional to 22,504.68, 31,055.06 and 13,555.08

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Solution

The fourth proportional to 22,504.68, 31,055.06 and 13,555.08 is: 18,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,504.68 : 31,055.06 = 13,555.08 : x
  2. Step 2: Convert to fraction form
    22,504.68/31,055.06 = 13,555.08/x
  3. Step 3: Cross multiply
    22,504.68x = 31,055.06 × 13,555.08
  4. Step 4: Simplify right side
    22,504.68x = 420,953,822.70
  5. Step 5: Solve for x
    x = 420,953,822.70/22,504.68
  6. Step 6: Final answer
    x = 18,705.17

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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.