Home / 39,316.56-54,255.12-21,410.50

Finding the Fourth Proportional to 39,316.56, 54,255.12 and 21,410.50

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Solution

The fourth proportional to 39,316.56, 54,255.12 and 21,410.50 is: 29,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,316.56 : 54,255.12 = 21,410.50 : x
  2. Step 2: Convert to fraction form
    39,316.56/54,255.12 = 21,410.50/x
  3. Step 3: Cross multiply
    39,316.56x = 54,255.12 × 21,410.50
  4. Step 4: Simplify right side
    39,316.56x = 1,161,628,975.48
  5. Step 5: Solve for x
    x = 1,161,628,975.48/39,316.56
  6. Step 6: Final answer
    x = 29,545.54

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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.