Home / 28,947,237.94-39,947,188.56-15,894,496.85

Finding the Fourth Proportional to 28,947,237.94, 39,947,188.56 and 15,894,496.85

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Solution

The fourth proportional to 28,947,237.94, 39,947,188.56 and 15,894,496.85 is: 21,934,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947,237.94 : 39,947,188.56 = 15,894,496.85 : x
  2. Step 2: Convert to fraction form
    28,947,237.94/39,947,188.56 = 15,894,496.85/x
  3. Step 3: Cross multiply
    28,947,237.94x = 39,947,188.56 × 15,894,496.85
  4. Step 4: Simplify right side
    28,947,237.94x = 634,940,462,733,276
  5. Step 5: Solve for x
    x = 634,940,462,733,276/28,947,237.94
  6. Step 6: Final answer
    x = 21,934,405.76

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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.