Home / 39,405.86-54,380.17-22,409.67

Finding the Fourth Proportional to 39,405.86, 54,380.17 and 22,409.67

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Solution

The fourth proportional to 39,405.86, 54,380.17 and 22,409.67 is: 30,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.86 : 54,380.17 = 22,409.67 : x
  2. Step 2: Convert to fraction form
    39,405.86/54,380.17 = 22,409.67/x
  3. Step 3: Cross multiply
    39,405.86x = 54,380.17 × 22,409.67
  4. Step 4: Simplify right side
    39,405.86x = 1,218,641,896.18
  5. Step 5: Solve for x
    x = 1,218,641,896.18/39,405.86
  6. Step 6: Final answer
    x = 30,925.40

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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.