Home / 30,008.13-45,039.48-15,979.92

Finding the Fourth Proportional to 30,008.13, 45,039.48 and 15,979.92

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Solution

The fourth proportional to 30,008.13, 45,039.48 and 15,979.92 is: 23,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.13 : 45,039.48 = 15,979.92 : x
  2. Step 2: Convert to fraction form
    30,008.13/45,039.48 = 15,979.92/x
  3. Step 3: Cross multiply
    30,008.13x = 45,039.48 × 15,979.92
  4. Step 4: Simplify right side
    30,008.13x = 719,727,287.24
  5. Step 5: Solve for x
    x = 719,727,287.24/30,008.13
  6. Step 6: Final answer
    x = 23,984.41

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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.