Home / 21,054,956.40-31,580,101.80-17,261,823.60

Finding the Fourth Proportional to 21,054,956.40, 31,580,101.80 and 17,261,823.60

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Solution

The fourth proportional to 21,054,956.40, 31,580,101.80 and 17,261,823.60 is: 25,890,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,956.40 : 31,580,101.80 = 17,261,823.60 : x
  2. Step 2: Convert to fraction form
    21,054,956.40/31,580,101.80 = 17,261,823.60/x
  3. Step 3: Cross multiply
    21,054,956.40x = 31,580,101.80 × 17,261,823.60
  4. Step 4: Simplify right side
    21,054,956.40x = 545,130,146,541,642.56
  5. Step 5: Solve for x
    x = 545,130,146,541,642.56/21,054,956.40
  6. Step 6: Final answer
    x = 25,890,822.86

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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.