Home / 39,228.84-54,136.87-21,325.05

Finding the Fourth Proportional to 39,228.84, 54,136.87 and 21,325.05

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Solution

The fourth proportional to 39,228.84, 54,136.87 and 21,325.05 is: 29,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.84 : 54,136.87 = 21,325.05 : x
  2. Step 2: Convert to fraction form
    39,228.84/54,136.87 = 21,325.05/x
  3. Step 3: Cross multiply
    39,228.84x = 54,136.87 × 21,325.05
  4. Step 4: Simplify right side
    39,228.84x = 1,154,471,406.28
  5. Step 5: Solve for x
    x = 1,154,471,406.28/39,228.84
  6. Step 6: Final answer
    x = 29,429.15

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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.