Home / 21,998.60-33,008.70-8,851.40

Finding the Fourth Proportional to 21,998.60, 33,008.70 and 8,851.40

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Solution

The fourth proportional to 21,998.60, 33,008.70 and 8,851.40 is: 13,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.60 : 33,008.70 = 8,851.40 : x
  2. Step 2: Convert to fraction form
    21,998.60/33,008.70 = 8,851.40/x
  3. Step 3: Cross multiply
    21,998.60x = 33,008.70 × 8,851.40
  4. Step 4: Simplify right side
    21,998.60x = 292,173,207.18
  5. Step 5: Solve for x
    x = 292,173,207.18/21,998.60
  6. Step 6: Final answer
    x = 13,281.45

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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.