Home / 28,022,891.44-38,671,572.72-15,145,835.44

Finding the Fourth Proportional to 28,022,891.44, 38,671,572.72 and 15,145,835.44

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Solution

The fourth proportional to 28,022,891.44, 38,671,572.72 and 15,145,835.44 is: 20,901,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022,891.44 : 38,671,572.72 = 15,145,835.44 : x
  2. Step 2: Convert to fraction form
    28,022,891.44/38,671,572.72 = 15,145,835.44/x
  3. Step 3: Cross multiply
    28,022,891.44x = 38,671,572.72 × 15,145,835.44
  4. Step 4: Simplify right side
    28,022,891.44x = 585,713,276,623,113.12
  5. Step 5: Solve for x
    x = 585,713,276,623,113.12/28,022,891.44
  6. Step 6: Final answer
    x = 20,901,243.47

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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.