Home / 20,910.60-31,409.64-17,630.10

Finding the Fourth Proportional to 20,910.60, 31,409.64 and 17,630.10

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Solution

The fourth proportional to 20,910.60, 31,409.64 and 17,630.10 is: 26,482.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910.60 : 31,409.64 = 17,630.10 : x
  2. Step 2: Convert to fraction form
    20,910.60/31,409.64 = 17,630.10/x
  3. Step 3: Cross multiply
    20,910.60x = 31,409.64 × 17,630.10
  4. Step 4: Simplify right side
    20,910.60x = 553,755,094.16
  5. Step 5: Solve for x
    x = 553,755,094.16/20,910.60
  6. Step 6: Final answer
    x = 26,482.03

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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.