Home / 21,250.61-31,875.55-7,399.25

Finding the Fourth Proportional to 21,250.61, 31,875.55 and 7,399.25

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Solution

The fourth proportional to 21,250.61, 31,875.55 and 7,399.25 is: 11,098.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.61 : 31,875.55 = 7,399.25 : x
  2. Step 2: Convert to fraction form
    21,250.61/31,875.55 = 7,399.25/x
  3. Step 3: Cross multiply
    21,250.61x = 31,875.55 × 7,399.25
  4. Step 4: Simplify right side
    21,250.61x = 235,855,163.34
  5. Step 5: Solve for x
    x = 235,855,163.34/21,250.61
  6. Step 6: Final answer
    x = 11,098.75

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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.