Home / 39,405.47-54,379.27-22,409.71

Finding the Fourth Proportional to 39,405.47, 54,379.27 and 22,409.71

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Solution

The fourth proportional to 39,405.47, 54,379.27 and 22,409.71 is: 30,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.47 : 54,379.27 = 22,409.71 : x
  2. Step 2: Convert to fraction form
    39,405.47/54,379.27 = 22,409.71/x
  3. Step 3: Cross multiply
    39,405.47x = 54,379.27 × 22,409.71
  4. Step 4: Simplify right side
    39,405.47x = 1,218,623,670.71
  5. Step 5: Solve for x
    x = 1,218,623,670.71/39,405.47
  6. Step 6: Final answer
    x = 30,925.24

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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.