Home / 30,439.43-45,654.89-10,448.61

Finding the Fourth Proportional to 30,439.43, 45,654.89 and 10,448.61

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Solution

The fourth proportional to 30,439.43, 45,654.89 and 10,448.61 is: 15,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439.43 : 45,654.89 = 10,448.61 : x
  2. Step 2: Convert to fraction form
    30,439.43/45,654.89 = 10,448.61/x
  3. Step 3: Cross multiply
    30,439.43x = 45,654.89 × 10,448.61
  4. Step 4: Simplify right side
    30,439.43x = 477,030,140.20
  5. Step 5: Solve for x
    x = 477,030,140.20/30,439.43
  6. Step 6: Final answer
    x = 15,671.45

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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.