Home / 39,362.88-54,319.32-21,457.50

Finding the Fourth Proportional to 39,362.88, 54,319.32 and 21,457.50

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Solution

The fourth proportional to 39,362.88, 54,319.32 and 21,457.50 is: 29,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,362.88 : 54,319.32 = 21,457.50 : x
  2. Step 2: Convert to fraction form
    39,362.88/54,319.32 = 21,457.50/x
  3. Step 3: Cross multiply
    39,362.88x = 54,319.32 × 21,457.50
  4. Step 4: Simplify right side
    39,362.88x = 1,165,556,808.90
  5. Step 5: Solve for x
    x = 1,165,556,808.90/39,362.88
  6. Step 6: Final answer
    x = 29,610.56

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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.