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Finding the Fourth Proportional to 33,688.80, 50,533.20 and 10,312.20

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Solution

The fourth proportional to 33,688.80, 50,533.20 and 10,312.20 is: 15,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,688.80 : 50,533.20 = 10,312.20 : x
  2. Step 2: Convert to fraction form
    33,688.80/50,533.20 = 10,312.20/x
  3. Step 3: Cross multiply
    33,688.80x = 50,533.20 × 10,312.20
  4. Step 4: Simplify right side
    33,688.80x = 521,108,465.04
  5. Step 5: Solve for x
    x = 521,108,465.04/33,688.80
  6. Step 6: Final answer
    x = 15,468.30

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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.