Home / 21,918.60-32,871.52-7,876.24

Finding the Fourth Proportional to 21,918.60, 32,871.52 and 7,876.24

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Solution

The fourth proportional to 21,918.60, 32,871.52 and 7,876.24 is: 11,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.60 : 32,871.52 = 7,876.24 : x
  2. Step 2: Convert to fraction form
    21,918.60/32,871.52 = 7,876.24/x
  3. Step 3: Cross multiply
    21,918.60x = 32,871.52 × 7,876.24
  4. Step 4: Simplify right side
    21,918.60x = 258,903,908.35
  5. Step 5: Solve for x
    x = 258,903,908.35/21,918.60
  6. Step 6: Final answer
    x = 11,812.06

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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.