Home / 29,145.06-43,632.54-21,681.72

Finding the Fourth Proportional to 29,145.06, 43,632.54 and 21,681.72

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Solution

The fourth proportional to 29,145.06, 43,632.54 and 21,681.72 is: 32,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.06 : 43,632.54 = 21,681.72 : x
  2. Step 2: Convert to fraction form
    29,145.06/43,632.54 = 21,681.72/x
  3. Step 3: Cross multiply
    29,145.06x = 43,632.54 × 21,681.72
  4. Step 4: Simplify right side
    29,145.06x = 946,028,515.17
  5. Step 5: Solve for x
    x = 946,028,515.17/29,145.06
  6. Step 6: Final answer
    x = 32,459.31

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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.