Home / 30,137.93-45,206.89-10,145.75

Finding the Fourth Proportional to 30,137.93, 45,206.89 and 10,145.75

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Solution

The fourth proportional to 30,137.93, 45,206.89 and 10,145.75 is: 15,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,137.93 : 45,206.89 = 10,145.75 : x
  2. Step 2: Convert to fraction form
    30,137.93/45,206.89 = 10,145.75/x
  3. Step 3: Cross multiply
    30,137.93x = 45,206.89 × 10,145.75
  4. Step 4: Simplify right side
    30,137.93x = 458,657,693.86
  5. Step 5: Solve for x
    x = 458,657,693.86/30,137.93
  6. Step 6: Final answer
    x = 15,218.62

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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.