Home / 39,666.15-54,739.26-21,761.46

Finding the Fourth Proportional to 39,666.15, 54,739.26 and 21,761.46

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Solution

The fourth proportional to 39,666.15, 54,739.26 and 21,761.46 is: 30,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,666.15 : 54,739.26 = 21,761.46 : x
  2. Step 2: Convert to fraction form
    39,666.15/54,739.26 = 21,761.46/x
  3. Step 3: Cross multiply
    39,666.15x = 54,739.26 × 21,761.46
  4. Step 4: Simplify right side
    39,666.15x = 1,191,206,216.92
  5. Step 5: Solve for x
    x = 1,191,206,216.92/39,666.15
  6. Step 6: Final answer
    x = 30,030.80

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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.