Home / 21,988.10-33,018.60-14,625.20

Finding the Fourth Proportional to 21,988.10, 33,018.60 and 14,625.20

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Solution

The fourth proportional to 21,988.10, 33,018.60 and 14,625.20 is: 21,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.10 : 33,018.60 = 14,625.20 : x
  2. Step 2: Convert to fraction form
    21,988.10/33,018.60 = 14,625.20/x
  3. Step 3: Cross multiply
    21,988.10x = 33,018.60 × 14,625.20
  4. Step 4: Simplify right side
    21,988.10x = 482,903,628.72
  5. Step 5: Solve for x
    x = 482,903,628.72/21,988.10
  6. Step 6: Final answer
    x = 21,962.04

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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.