Home / 28,991.07-40,007.16-16,244.20

Finding the Fourth Proportional to 28,991.07, 40,007.16 and 16,244.20

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Solution

The fourth proportional to 28,991.07, 40,007.16 and 16,244.20 is: 22,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.07 : 40,007.16 = 16,244.20 : x
  2. Step 2: Convert to fraction form
    28,991.07/40,007.16 = 16,244.20/x
  3. Step 3: Cross multiply
    28,991.07x = 40,007.16 × 16,244.20
  4. Step 4: Simplify right side
    28,991.07x = 649,884,227.25
  5. Step 5: Solve for x
    x = 649,884,227.25/28,991.07
  6. Step 6: Final answer
    x = 22,416.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.