Home / 30,288.44-45,419.70-10,561.16

Finding the Fourth Proportional to 30,288.44, 45,419.70 and 10,561.16

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Solution

The fourth proportional to 30,288.44, 45,419.70 and 10,561.16 is: 15,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.44 : 45,419.70 = 10,561.16 : x
  2. Step 2: Convert to fraction form
    30,288.44/45,419.70 = 10,561.16/x
  3. Step 3: Cross multiply
    30,288.44x = 45,419.70 × 10,561.16
  4. Step 4: Simplify right side
    30,288.44x = 479,684,718.85
  5. Step 5: Solve for x
    x = 479,684,718.85/30,288.44
  6. Step 6: Final answer
    x = 15,837.22

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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.