Home / 39,233.49-54,142.76-21,328.50

Finding the Fourth Proportional to 39,233.49, 54,142.76 and 21,328.50

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Solution

The fourth proportional to 39,233.49, 54,142.76 and 21,328.50 is: 29,433.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,233.49 : 54,142.76 = 21,328.50 : x
  2. Step 2: Convert to fraction form
    39,233.49/54,142.76 = 21,328.50/x
  3. Step 3: Cross multiply
    39,233.49x = 54,142.76 × 21,328.50
  4. Step 4: Simplify right side
    39,233.49x = 1,154,783,856.66
  5. Step 5: Solve for x
    x = 1,154,783,856.66/39,233.49
  6. Step 6: Final answer
    x = 29,433.63

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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.