Home / 21,303,945.40-31,955,918.10-17,761,005.40

Finding the Fourth Proportional to 21,303,945.40, 31,955,918.10 and 17,761,005.40

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Solution

The fourth proportional to 21,303,945.40, 31,955,918.10 and 17,761,005.40 is: 26,641,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,945.40 : 31,955,918.10 = 17,761,005.40 : x
  2. Step 2: Convert to fraction form
    21,303,945.40/31,955,918.10 = 17,761,005.40/x
  3. Step 3: Cross multiply
    21,303,945.40x = 31,955,918.10 × 17,761,005.40
  4. Step 4: Simplify right side
    21,303,945.40x = 567,569,233,936,057.75
  5. Step 5: Solve for x
    x = 567,569,233,936,057.75/21,303,945.40
  6. Step 6: Final answer
    x = 26,641,508.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.