Home / 21,325.14-29,428.01-11,765.02

Finding the Fourth Proportional to 21,325.14, 29,428.01 and 11,765.02

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Solution

The fourth proportional to 21,325.14, 29,428.01 and 11,765.02 is: 16,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.14 : 29,428.01 = 11,765.02 : x
  2. Step 2: Convert to fraction form
    21,325.14/29,428.01 = 11,765.02/x
  3. Step 3: Cross multiply
    21,325.14x = 29,428.01 × 11,765.02
  4. Step 4: Simplify right side
    21,325.14x = 346,221,126.21
  5. Step 5: Solve for x
    x = 346,221,126.21/21,325.14
  6. Step 6: Final answer
    x = 16,235.35

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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.