Home / 21,168.02-31,733.40-8,010.80

Finding the Fourth Proportional to 21,168.02, 31,733.40 and 8,010.80

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Solution

The fourth proportional to 21,168.02, 31,733.40 and 8,010.80 is: 12,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.02 : 31,733.40 = 8,010.80 : x
  2. Step 2: Convert to fraction form
    21,168.02/31,733.40 = 8,010.80/x
  3. Step 3: Cross multiply
    21,168.02x = 31,733.40 × 8,010.80
  4. Step 4: Simplify right side
    21,168.02x = 254,209,920.72
  5. Step 5: Solve for x
    x = 254,209,920.72/21,168.02
  6. Step 6: Final answer
    x = 12,009.15

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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.