Home / 39,593.53-54,639.06-21,689.17

Finding the Fourth Proportional to 39,593.53, 54,639.06 and 21,689.17

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Solution

The fourth proportional to 39,593.53, 54,639.06 and 21,689.17 is: 29,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,593.53 : 54,639.06 = 21,689.17 : x
  2. Step 2: Convert to fraction form
    39,593.53/54,639.06 = 21,689.17/x
  3. Step 3: Cross multiply
    39,593.53x = 54,639.06 × 21,689.17
  4. Step 4: Simplify right side
    39,593.53x = 1,185,075,860.98
  5. Step 5: Solve for x
    x = 1,185,075,860.98/39,593.53
  6. Step 6: Final answer
    x = 29,931.05

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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.