Home / 21,686.00-32,518.19-7,642.37

Finding the Fourth Proportional to 21,686.00, 32,518.19 and 7,642.37

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Solution

The fourth proportional to 21,686.00, 32,518.19 and 7,642.37 is: 11,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686.00 : 32,518.19 = 7,642.37 : x
  2. Step 2: Convert to fraction form
    21,686.00/32,518.19 = 7,642.37/x
  3. Step 3: Cross multiply
    21,686.00x = 32,518.19 × 7,642.37
  4. Step 4: Simplify right side
    21,686.00x = 248,516,140.11
  5. Step 5: Solve for x
    x = 248,516,140.11/21,686.00
  6. Step 6: Final answer
    x = 11,459.75

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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.