Home / 21,356.04-32,049.72-17,245.20

Finding the Fourth Proportional to 21,356.04, 32,049.72 and 17,245.20

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Solution

The fourth proportional to 21,356.04, 32,049.72 and 17,245.20 is: 25,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.04 : 32,049.72 = 17,245.20 : x
  2. Step 2: Convert to fraction form
    21,356.04/32,049.72 = 17,245.20/x
  3. Step 3: Cross multiply
    21,356.04x = 32,049.72 × 17,245.20
  4. Step 4: Simplify right side
    21,356.04x = 552,703,831.34
  5. Step 5: Solve for x
    x = 552,703,831.34/21,356.04
  6. Step 6: Final answer
    x = 25,880.45

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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.