Home / 30,147.93-45,226.22-10,421.87

Finding the Fourth Proportional to 30,147.93, 45,226.22 and 10,421.87

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Solution

The fourth proportional to 30,147.93, 45,226.22 and 10,421.87 is: 15,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.93 : 45,226.22 = 10,421.87 : x
  2. Step 2: Convert to fraction form
    30,147.93/45,226.22 = 10,421.87/x
  3. Step 3: Cross multiply
    30,147.93x = 45,226.22 × 10,421.87
  4. Step 4: Simplify right side
    30,147.93x = 471,341,507.19
  5. Step 5: Solve for x
    x = 471,341,507.19/30,147.93
  6. Step 6: Final answer
    x = 15,634.29

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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.