Home / 39,567.05-54,603.18-21,661.76

Finding the Fourth Proportional to 39,567.05, 54,603.18 and 21,661.76

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Solution

The fourth proportional to 39,567.05, 54,603.18 and 21,661.76 is: 29,893.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,567.05 : 54,603.18 = 21,661.76 : x
  2. Step 2: Convert to fraction form
    39,567.05/54,603.18 = 21,661.76/x
  3. Step 3: Cross multiply
    39,567.05x = 54,603.18 × 21,661.76
  4. Step 4: Simplify right side
    39,567.05x = 1,182,800,980.40
  5. Step 5: Solve for x
    x = 1,182,800,980.40/39,567.05
  6. Step 6: Final answer
    x = 29,893.59

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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.