Home / 30,458.43-45,690.08-10,459.90

Finding the Fourth Proportional to 30,458.43, 45,690.08 and 10,459.90

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Solution

The fourth proportional to 30,458.43, 45,690.08 and 10,459.90 is: 15,690.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,458.43 : 45,690.08 = 10,459.90 : x
  2. Step 2: Convert to fraction form
    30,458.43/45,690.08 = 10,459.90/x
  3. Step 3: Cross multiply
    30,458.43x = 45,690.08 × 10,459.90
  4. Step 4: Simplify right side
    30,458.43x = 477,913,672.61
  5. Step 5: Solve for x
    x = 477,913,672.61/30,458.43
  6. Step 6: Final answer
    x = 15,690.69

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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.