Home / 28,104.50-38,802.30-18,037.28

Finding the Fourth Proportional to 28,104.50, 38,802.30 and 18,037.28

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Solution

The fourth proportional to 28,104.50, 38,802.30 and 18,037.28 is: 24,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.50 : 38,802.30 = 18,037.28 : x
  2. Step 2: Convert to fraction form
    28,104.50/38,802.30 = 18,037.28/x
  3. Step 3: Cross multiply
    28,104.50x = 38,802.30 × 18,037.28
  4. Step 4: Simplify right side
    28,104.50x = 699,887,949.74
  5. Step 5: Solve for x
    x = 699,887,949.74/28,104.50
  6. Step 6: Final answer
    x = 24,903.06

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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.