Home / 32,719.84-45,129.04-20,772.80

Finding the Fourth Proportional to 32,719.84, 45,129.04 and 20,772.80

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Solution

The fourth proportional to 32,719.84, 45,129.04 and 20,772.80 is: 28,651.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,719.84 : 45,129.04 = 20,772.80 : x
  2. Step 2: Convert to fraction form
    32,719.84/45,129.04 = 20,772.80/x
  3. Step 3: Cross multiply
    32,719.84x = 45,129.04 × 20,772.80
  4. Step 4: Simplify right side
    32,719.84x = 937,456,522.11
  5. Step 5: Solve for x
    x = 937,456,522.11/32,719.84
  6. Step 6: Final answer
    x = 28,651.01

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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.