Home / 19,220.65-28,833.95-8,127.39

Finding the Fourth Proportional to 19,220.65, 28,833.95 and 8,127.39

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Solution

The fourth proportional to 19,220.65, 28,833.95 and 8,127.39 is: 12,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.65 : 28,833.95 = 8,127.39 : x
  2. Step 2: Convert to fraction form
    19,220.65/28,833.95 = 8,127.39/x
  3. Step 3: Cross multiply
    19,220.65x = 28,833.95 × 8,127.39
  4. Step 4: Simplify right side
    19,220.65x = 234,344,756.89
  5. Step 5: Solve for x
    x = 234,344,756.89/19,220.65
  6. Step 6: Final answer
    x = 12,192.34

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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.