Home / 22,140.51-30,554.04-13,188.39

Finding the Fourth Proportional to 22,140.51, 30,554.04 and 13,188.39

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Solution

The fourth proportional to 22,140.51, 30,554.04 and 13,188.39 is: 18,200.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.51 : 30,554.04 = 13,188.39 : x
  2. Step 2: Convert to fraction form
    22,140.51/30,554.04 = 13,188.39/x
  3. Step 3: Cross multiply
    22,140.51x = 30,554.04 × 13,188.39
  4. Step 4: Simplify right side
    22,140.51x = 402,958,595.60
  5. Step 5: Solve for x
    x = 402,958,595.60/22,140.51
  6. Step 6: Final answer
    x = 18,200.06

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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.