Home / 21,104.72-31,657.40-5,522.34

Finding the Fourth Proportional to 21,104.72, 31,657.40 and 5,522.34

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Solution

The fourth proportional to 21,104.72, 31,657.40 and 5,522.34 is: 8,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.72 : 31,657.40 = 5,522.34 : x
  2. Step 2: Convert to fraction form
    21,104.72/31,657.40 = 5,522.34/x
  3. Step 3: Cross multiply
    21,104.72x = 31,657.40 × 5,522.34
  4. Step 4: Simplify right side
    21,104.72x = 174,823,038.13
  5. Step 5: Solve for x
    x = 174,823,038.13/21,104.72
  6. Step 6: Final answer
    x = 8,283.60

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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.