Home / 39,664.17-54,737.28-21,759.93

Finding the Fourth Proportional to 39,664.17, 54,737.28 and 21,759.93

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Solution

The fourth proportional to 39,664.17, 54,737.28 and 21,759.93 is: 30,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,664.17 : 54,737.28 = 21,759.93 : x
  2. Step 2: Convert to fraction form
    39,664.17/54,737.28 = 21,759.93/x
  3. Step 3: Cross multiply
    39,664.17x = 54,737.28 × 21,759.93
  4. Step 4: Simplify right side
    39,664.17x = 1,191,079,381.19
  5. Step 5: Solve for x
    x = 1,191,079,381.19/39,664.17
  6. Step 6: Final answer
    x = 30,029.10

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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.