Home / 19,813.23-29,712.76-9,281.45

Finding the Fourth Proportional to 19,813.23, 29,712.76 and 9,281.45

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Solution

The fourth proportional to 19,813.23, 29,712.76 and 9,281.45 is: 13,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.23 : 29,712.76 = 9,281.45 : x
  2. Step 2: Convert to fraction form
    19,813.23/29,712.76 = 9,281.45/x
  3. Step 3: Cross multiply
    19,813.23x = 29,712.76 × 9,281.45
  4. Step 4: Simplify right side
    19,813.23x = 275,777,496.30
  5. Step 5: Solve for x
    x = 275,777,496.30/19,813.23
  6. Step 6: Final answer
    x = 13,918.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.