Home / 42,864.24-64,270.44-28,971.12

Finding the Fourth Proportional to 42,864.24, 64,270.44 and 28,971.12

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Solution

The fourth proportional to 42,864.24, 64,270.44 and 28,971.12 is: 43,439.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,864.24 : 64,270.44 = 28,971.12 : x
  2. Step 2: Convert to fraction form
    42,864.24/64,270.44 = 28,971.12/x
  3. Step 3: Cross multiply
    42,864.24x = 64,270.44 × 28,971.12
  4. Step 4: Simplify right side
    42,864.24x = 1,861,986,629.69
  5. Step 5: Solve for x
    x = 1,861,986,629.69/42,864.24
  6. Step 6: Final answer
    x = 43,439.16

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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.