Home / 40,021.16-60,035.15-11,939.40

Finding the Fourth Proportional to 40,021.16, 60,035.15 and 11,939.40

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Solution

The fourth proportional to 40,021.16, 60,035.15 and 11,939.40 is: 17,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,021.16 : 60,035.15 = 11,939.40 : x
  2. Step 2: Convert to fraction form
    40,021.16/60,035.15 = 11,939.40/x
  3. Step 3: Cross multiply
    40,021.16x = 60,035.15 × 11,939.40
  4. Step 4: Simplify right side
    40,021.16x = 716,783,669.91
  5. Step 5: Solve for x
    x = 716,783,669.91/40,021.16
  6. Step 6: Final answer
    x = 17,910.12

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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.