Home / 39,155.04-54,020.52-22,157.28

Finding the Fourth Proportional to 39,155.04, 54,020.52 and 22,157.28

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Solution

The fourth proportional to 39,155.04, 54,020.52 and 22,157.28 is: 30,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.04 : 54,020.52 = 22,157.28 : x
  2. Step 2: Convert to fraction form
    39,155.04/54,020.52 = 22,157.28/x
  3. Step 3: Cross multiply
    39,155.04x = 54,020.52 × 22,157.28
  4. Step 4: Simplify right side
    39,155.04x = 1,196,947,787.39
  5. Step 5: Solve for x
    x = 1,196,947,787.39/39,155.04
  6. Step 6: Final answer
    x = 30,569.44

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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.