Home / 21,425,513.28-29,567,417.76-11,767,721.28

Finding the Fourth Proportional to 21,425,513.28, 29,567,417.76 and 11,767,721.28

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Solution

The fourth proportional to 21,425,513.28, 29,567,417.76 and 11,767,721.28 is: 16,239,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425,513.28 : 29,567,417.76 = 11,767,721.28 : x
  2. Step 2: Convert to fraction form
    21,425,513.28/29,567,417.76 = 11,767,721.28/x
  3. Step 3: Cross multiply
    21,425,513.28x = 29,567,417.76 × 11,767,721.28
  4. Step 4: Simplify right side
    21,425,513.28x = 347,941,131,169,001.94
  5. Step 5: Solve for x
    x = 347,941,131,169,001.94/21,425,513.28
  6. Step 6: Final answer
    x = 16,239,570.40

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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.