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Finding the Fourth Proportional to 30,253.92, 45,379.80 and 10,532.40

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Solution

The fourth proportional to 30,253.92, 45,379.80 and 10,532.40 is: 15,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,253.92 : 45,379.80 = 10,532.40 : x
  2. Step 2: Convert to fraction form
    30,253.92/45,379.80 = 10,532.40/x
  3. Step 3: Cross multiply
    30,253.92x = 45,379.80 × 10,532.40
  4. Step 4: Simplify right side
    30,253.92x = 477,958,205.52
  5. Step 5: Solve for x
    x = 477,958,205.52/30,253.92
  6. Step 6: Final answer
    x = 15,798.22

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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.