Home / 31,358,798.71-43,276,371.69-21,456,451.23

Finding the Fourth Proportional to 31,358,798.71, 43,276,371.69 and 21,456,451.23

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Solution

The fourth proportional to 31,358,798.71, 43,276,371.69 and 21,456,451.23 is: 29,610,743.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358,798.71 : 43,276,371.69 = 21,456,451.23 : x
  2. Step 2: Convert to fraction form
    31,358,798.71/43,276,371.69 = 21,456,451.23/x
  3. Step 3: Cross multiply
    31,358,798.71x = 43,276,371.69 × 21,456,451.23
  4. Step 4: Simplify right side
    31,358,798.71x = 928,557,358,618,750
  5. Step 5: Solve for x
    x = 928,557,358,618,750/31,358,798.71
  6. Step 6: Final answer
    x = 29,610,743.93

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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.