Home / 39,315.58-54,253.85-21,410.53

Finding the Fourth Proportional to 39,315.58, 54,253.85 and 21,410.53

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Solution

The fourth proportional to 39,315.58, 54,253.85 and 21,410.53 is: 29,545.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315.58 : 54,253.85 = 21,410.53 : x
  2. Step 2: Convert to fraction form
    39,315.58/54,253.85 = 21,410.53/x
  3. Step 3: Cross multiply
    39,315.58x = 54,253.85 × 21,410.53
  4. Step 4: Simplify right side
    39,315.58x = 1,161,603,560.79
  5. Step 5: Solve for x
    x = 1,161,603,560.79/39,315.58
  6. Step 6: Final answer
    x = 29,545.63

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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.