Home / 39,594.04-54,639.78-21,689.34

Finding the Fourth Proportional to 39,594.04, 54,639.78 and 21,689.34

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Solution

The fourth proportional to 39,594.04, 54,639.78 and 21,689.34 is: 29,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,594.04 : 54,639.78 = 21,689.34 : x
  2. Step 2: Convert to fraction form
    39,594.04/54,639.78 = 21,689.34/x
  3. Step 3: Cross multiply
    39,594.04x = 54,639.78 × 21,689.34
  4. Step 4: Simplify right side
    39,594.04x = 1,185,100,765.95
  5. Step 5: Solve for x
    x = 1,185,100,765.95/39,594.04
  6. Step 6: Final answer
    x = 29,931.29

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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.