Home / 22,817.84-31,510.35-21,575.30

Finding the Fourth Proportional to 22,817.84, 31,510.35 and 21,575.30

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Solution

The fourth proportional to 22,817.84, 31,510.35 and 21,575.30 is: 29,794.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,817.84 : 31,510.35 = 21,575.30 : x
  2. Step 2: Convert to fraction form
    22,817.84/31,510.35 = 21,575.30/x
  3. Step 3: Cross multiply
    22,817.84x = 31,510.35 × 21,575.30
  4. Step 4: Simplify right side
    22,817.84x = 679,845,096.80
  5. Step 5: Solve for x
    x = 679,845,096.80/22,817.84
  6. Step 6: Final answer
    x = 29,794.46

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1.5x scale

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.