Home / 39,468.51-54,465.63-21,563.61

Finding the Fourth Proportional to 39,468.51, 54,465.63 and 21,563.61

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Solution

The fourth proportional to 39,468.51, 54,465.63 and 21,563.61 is: 29,757.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,468.51 : 54,465.63 = 21,563.61 : x
  2. Step 2: Convert to fraction form
    39,468.51/54,465.63 = 21,563.61/x
  3. Step 3: Cross multiply
    39,468.51x = 54,465.63 × 21,563.61
  4. Step 4: Simplify right side
    39,468.51x = 1,174,475,603.72
  5. Step 5: Solve for x
    x = 1,174,475,603.72/39,468.51
  6. Step 6: Final answer
    x = 29,757.28

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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.