Home / 21,088.60-31,633.02-5,506.36

Finding the Fourth Proportional to 21,088.60, 31,633.02 and 5,506.36

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Solution

The fourth proportional to 21,088.60, 31,633.02 and 5,506.36 is: 8,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.60 : 31,633.02 = 5,506.36 : x
  2. Step 2: Convert to fraction form
    21,088.60/31,633.02 = 5,506.36/x
  3. Step 3: Cross multiply
    21,088.60x = 31,633.02 × 5,506.36
  4. Step 4: Simplify right side
    21,088.60x = 174,182,796.01
  5. Step 5: Solve for x
    x = 174,182,796.01/21,088.60
  6. Step 6: Final answer
    x = 8,259.57

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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.