Home / 28,659,051.32-39,551,151.24-21,581,975.36

Finding the Fourth Proportional to 28,659,051.32, 39,551,151.24 and 21,581,975.36

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Solution

The fourth proportional to 28,659,051.32, 39,551,151.24 and 21,581,975.36 is: 29,784,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659,051.32 : 39,551,151.24 = 21,581,975.36 : x
  2. Step 2: Convert to fraction form
    28,659,051.32/39,551,151.24 = 21,581,975.36/x
  3. Step 3: Cross multiply
    28,659,051.32x = 39,551,151.24 × 21,581,975.36
  4. Step 4: Simplify right side
    28,659,051.32x = 853,591,971,521,313.50
  5. Step 5: Solve for x
    x = 853,591,971,521,313.50/28,659,051.32
  6. Step 6: Final answer
    x = 29,784,376.39

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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.