Home / 30,262.28-45,345.96-19,145.48

Finding the Fourth Proportional to 30,262.28, 45,345.96 and 19,145.48

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Solution

The fourth proportional to 30,262.28, 45,345.96 and 19,145.48 is: 28,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,262.28 : 45,345.96 = 19,145.48 : x
  2. Step 2: Convert to fraction form
    30,262.28/45,345.96 = 19,145.48/x
  3. Step 3: Cross multiply
    30,262.28x = 45,345.96 × 19,145.48
  4. Step 4: Simplify right side
    30,262.28x = 868,170,170.26
  5. Step 5: Solve for x
    x = 868,170,170.26/30,262.28
  6. Step 6: Final answer
    x = 28,688.19

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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.