Home / 39,433.56-54,419.14-21,529.32

Finding the Fourth Proportional to 39,433.56, 54,419.14 and 21,529.32

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Solution

The fourth proportional to 39,433.56, 54,419.14 and 21,529.32 is: 29,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,433.56 : 54,419.14 = 21,529.32 : x
  2. Step 2: Convert to fraction form
    39,433.56/54,419.14 = 21,529.32/x
  3. Step 3: Cross multiply
    39,433.56x = 54,419.14 × 21,529.32
  4. Step 4: Simplify right side
    39,433.56x = 1,171,607,079.18
  5. Step 5: Solve for x
    x = 1,171,607,079.18/39,433.56
  6. Step 6: Final answer
    x = 29,710.91

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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.