Home / 28,759,339.36-39,688,120.56-15,882,283.36

Finding the Fourth Proportional to 28,759,339.36, 39,688,120.56 and 15,882,283.36

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Solution

The fourth proportional to 28,759,339.36, 39,688,120.56 and 15,882,283.36 is: 21,917,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759,339.36 : 39,688,120.56 = 15,882,283.36 : x
  2. Step 2: Convert to fraction form
    28,759,339.36/39,688,120.56 = 15,882,283.36/x
  3. Step 3: Cross multiply
    28,759,339.36x = 39,688,120.56 × 15,882,283.36
  4. Step 4: Simplify right side
    28,759,339.36x = 630,337,976,759,761.88
  5. Step 5: Solve for x
    x = 630,337,976,759,761.88/28,759,339.36
  6. Step 6: Final answer
    x = 21,917,679.29

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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.