Home / 30,432.92-45,642.08-10,440.09

Finding the Fourth Proportional to 30,432.92, 45,642.08 and 10,440.09

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Solution

The fourth proportional to 30,432.92, 45,642.08 and 10,440.09 is: 15,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,432.92 : 45,642.08 = 10,440.09 : x
  2. Step 2: Convert to fraction form
    30,432.92/45,642.08 = 10,440.09/x
  3. Step 3: Cross multiply
    30,432.92x = 45,642.08 × 10,440.09
  4. Step 4: Simplify right side
    30,432.92x = 476,507,449.09
  5. Step 5: Solve for x
    x = 476,507,449.09/30,432.92
  6. Step 6: Final answer
    x = 15,657.63

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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.