Home / 19,220.17-28,832.31-8,127.98

Finding the Fourth Proportional to 19,220.17, 28,832.31 and 8,127.98

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Solution

The fourth proportional to 19,220.17, 28,832.31 and 8,127.98 is: 12,192.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.17 : 28,832.31 = 8,127.98 : x
  2. Step 2: Convert to fraction form
    19,220.17/28,832.31 = 8,127.98/x
  3. Step 3: Cross multiply
    19,220.17x = 28,832.31 × 8,127.98
  4. Step 4: Simplify right side
    19,220.17x = 234,348,441.81
  5. Step 5: Solve for x
    x = 234,348,441.81/19,220.17
  6. Step 6: Final answer
    x = 12,192.84

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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.