Home / 22,280.40-33,420.60-19,688.40

Finding the Fourth Proportional to 22,280.40, 33,420.60 and 19,688.40

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Solution

The fourth proportional to 22,280.40, 33,420.60 and 19,688.40 is: 29,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.40 : 33,420.60 = 19,688.40 : x
  2. Step 2: Convert to fraction form
    22,280.40/33,420.60 = 19,688.40/x
  3. Step 3: Cross multiply
    22,280.40x = 33,420.60 × 19,688.40
  4. Step 4: Simplify right side
    22,280.40x = 657,998,141.04
  5. Step 5: Solve for x
    x = 657,998,141.04/22,280.40
  6. Step 6: Final answer
    x = 29,532.60

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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.