Home / 19,610.14-29,420.70-7,931.56

Finding the Fourth Proportional to 19,610.14, 29,420.70 and 7,931.56

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Solution

The fourth proportional to 19,610.14, 29,420.70 and 7,931.56 is: 11,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,610.14 : 29,420.70 = 7,931.56 : x
  2. Step 2: Convert to fraction form
    19,610.14/29,420.70 = 7,931.56/x
  3. Step 3: Cross multiply
    19,610.14x = 29,420.70 × 7,931.56
  4. Step 4: Simplify right side
    19,610.14x = 233,352,047.29
  5. Step 5: Solve for x
    x = 233,352,047.29/19,610.14
  6. Step 6: Final answer
    x = 11,899.56

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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.