Home / 30,567.36-42,201.36-19,974.72

Finding the Fourth Proportional to 30,567.36, 42,201.36 and 19,974.72

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Solution

The fourth proportional to 30,567.36, 42,201.36 and 19,974.72 is: 27,577.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.36 : 42,201.36 = 19,974.72 : x
  2. Step 2: Convert to fraction form
    30,567.36/42,201.36 = 19,974.72/x
  3. Step 3: Cross multiply
    30,567.36x = 42,201.36 × 19,974.72
  4. Step 4: Simplify right side
    30,567.36x = 842,960,349.62
  5. Step 5: Solve for x
    x = 842,960,349.62/30,567.36
  6. Step 6: Final answer
    x = 27,577.14

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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.