Home / 21,918.47-32,877.50-9,447.30

Finding the Fourth Proportional to 21,918.47, 32,877.50 and 9,447.30

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Solution

The fourth proportional to 21,918.47, 32,877.50 and 9,447.30 is: 14,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.47 : 32,877.50 = 9,447.30 : x
  2. Step 2: Convert to fraction form
    21,918.47/32,877.50 = 9,447.30/x
  3. Step 3: Cross multiply
    21,918.47x = 32,877.50 × 9,447.30
  4. Step 4: Simplify right side
    21,918.47x = 310,603,558.51
  5. Step 5: Solve for x
    x = 310,603,558.51/21,918.47
  6. Step 6: Final answer
    x = 14,170.86

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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.