Home / 39,937-59,945.16-21,217.18

Finding the Fourth Proportional to 39,937, 59,945.16 and 21,217.18

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Solution

The fourth proportional to 39,937, 59,945.16 and 21,217.18 is: 31,846.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,937 : 59,945.16 = 21,217.18 : x
  2. Step 2: Convert to fraction form
    39,937/59,945.16 = 21,217.18/x
  3. Step 3: Cross multiply
    39,937x = 59,945.16 × 21,217.18
  4. Step 4: Simplify right side
    39,937x = 1,271,867,249.85
  5. Step 5: Solve for x
    x = 1,271,867,249.85/39,937
  6. Step 6: Final answer
    x = 31,846.84

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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.