Home / 39,766.63-54,875.84-21,858.19

Finding the Fourth Proportional to 39,766.63, 54,875.84 and 21,858.19

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Solution

The fourth proportional to 39,766.63, 54,875.84 and 21,858.19 is: 30,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,766.63 : 54,875.84 = 21,858.19 : x
  2. Step 2: Convert to fraction form
    39,766.63/54,875.84 = 21,858.19/x
  3. Step 3: Cross multiply
    39,766.63x = 54,875.84 × 21,858.19
  4. Step 4: Simplify right side
    39,766.63x = 1,199,486,537.13
  5. Step 5: Solve for x
    x = 1,199,486,537.13/39,766.63
  6. Step 6: Final answer
    x = 30,163.14

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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.