Home / 21,291.60-31,937.40-5,496.60

Finding the Fourth Proportional to 21,291.60, 31,937.40 and 5,496.60

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Solution

The fourth proportional to 21,291.60, 31,937.40 and 5,496.60 is: 8,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291.60 : 31,937.40 = 5,496.60 : x
  2. Step 2: Convert to fraction form
    21,291.60/31,937.40 = 5,496.60/x
  3. Step 3: Cross multiply
    21,291.60x = 31,937.40 × 5,496.60
  4. Step 4: Simplify right side
    21,291.60x = 175,547,112.84
  5. Step 5: Solve for x
    x = 175,547,112.84/21,291.60
  6. Step 6: Final answer
    x = 8,244.90

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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.