Home / 19,127.74-28,630.18-10,220.80

Finding the Fourth Proportional to 19,127.74, 28,630.18 and 10,220.80

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Solution

The fourth proportional to 19,127.74, 28,630.18 and 10,220.80 is: 15,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.74 : 28,630.18 = 10,220.80 : x
  2. Step 2: Convert to fraction form
    19,127.74/28,630.18 = 10,220.80/x
  3. Step 3: Cross multiply
    19,127.74x = 28,630.18 × 10,220.80
  4. Step 4: Simplify right side
    19,127.74x = 292,623,343.74
  5. Step 5: Solve for x
    x = 292,623,343.74/19,127.74
  6. Step 6: Final answer
    x = 15,298.38

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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.