Home / 22,628.40-31,224.60-13,677.36

Finding the Fourth Proportional to 22,628.40, 31,224.60 and 13,677.36

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Solution

The fourth proportional to 22,628.40, 31,224.60 and 13,677.36 is: 18,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,628.40 : 31,224.60 = 13,677.36 : x
  2. Step 2: Convert to fraction form
    22,628.40/31,224.60 = 13,677.36/x
  3. Step 3: Cross multiply
    22,628.40x = 31,224.60 × 13,677.36
  4. Step 4: Simplify right side
    22,628.40x = 427,070,095.06
  5. Step 5: Solve for x
    x = 427,070,095.06/22,628.40
  6. Step 6: Final answer
    x = 18,873.19

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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.