Home / 22,172.67-30,598.36-12,740.63

Finding the Fourth Proportional to 22,172.67, 30,598.36 and 12,740.63

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Solution

The fourth proportional to 22,172.67, 30,598.36 and 12,740.63 is: 17,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,172.67 : 30,598.36 = 12,740.63 : x
  2. Step 2: Convert to fraction form
    22,172.67/30,598.36 = 12,740.63/x
  3. Step 3: Cross multiply
    22,172.67x = 30,598.36 × 12,740.63
  4. Step 4: Simplify right side
    22,172.67x = 389,842,198.52
  5. Step 5: Solve for x
    x = 389,842,198.52/22,172.67
  6. Step 6: Final answer
    x = 17,582.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.