Home / 39,225.78-58,838.70-11,142.21

Finding the Fourth Proportional to 39,225.78, 58,838.70 and 11,142.21

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Solution

The fourth proportional to 39,225.78, 58,838.70 and 11,142.21 is: 16,713.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,225.78 : 58,838.70 = 11,142.21 : x
  2. Step 2: Convert to fraction form
    39,225.78/58,838.70 = 11,142.21/x
  3. Step 3: Cross multiply
    39,225.78x = 58,838.70 × 11,142.21
  4. Step 4: Simplify right side
    39,225.78x = 655,593,151.53
  5. Step 5: Solve for x
    x = 655,593,151.53/39,225.78
  6. Step 6: Final answer
    x = 16,713.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.