Home / 18,921.66-28,357.34-10,035.16

Finding the Fourth Proportional to 18,921.66, 28,357.34 and 10,035.16

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Solution

The fourth proportional to 18,921.66, 28,357.34 and 10,035.16 is: 15,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.66 : 28,357.34 = 10,035.16 : x
  2. Step 2: Convert to fraction form
    18,921.66/28,357.34 = 10,035.16/x
  3. Step 3: Cross multiply
    18,921.66x = 28,357.34 × 10,035.16
  4. Step 4: Simplify right side
    18,921.66x = 284,570,444.07
  5. Step 5: Solve for x
    x = 284,570,444.07/18,921.66
  6. Step 6: Final answer
    x = 15,039.40

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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.