Home / 22,221.14-33,331.10-7,430.40

Finding the Fourth Proportional to 22,221.14, 33,331.10 and 7,430.40

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Solution

The fourth proportional to 22,221.14, 33,331.10 and 7,430.40 is: 11,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.14 : 33,331.10 = 7,430.40 : x
  2. Step 2: Convert to fraction form
    22,221.14/33,331.10 = 7,430.40/x
  3. Step 3: Cross multiply
    22,221.14x = 33,331.10 × 7,430.40
  4. Step 4: Simplify right side
    22,221.14x = 247,663,368.29
  5. Step 5: Solve for x
    x = 247,663,368.29/22,221.14
  6. Step 6: Final answer
    x = 11,145.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.