Home / 30,537.28-42,117.60-19,930.24

Finding the Fourth Proportional to 30,537.28, 42,117.60 and 19,930.24

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Solution

The fourth proportional to 30,537.28, 42,117.60 and 19,930.24 is: 27,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.28 : 42,117.60 = 19,930.24 : x
  2. Step 2: Convert to fraction form
    30,537.28/42,117.60 = 19,930.24/x
  3. Step 3: Cross multiply
    30,537.28x = 42,117.60 × 19,930.24
  4. Step 4: Simplify right side
    30,537.28x = 839,413,876.22
  5. Step 5: Solve for x
    x = 839,413,876.22/30,537.28
  6. Step 6: Final answer
    x = 27,488.17

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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.