Home / 19,625.40-29,450.28-7,938.72

Finding the Fourth Proportional to 19,625.40, 29,450.28 and 7,938.72

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Solution

The fourth proportional to 19,625.40, 29,450.28 and 7,938.72 is: 11,913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,625.40 : 29,450.28 = 7,938.72 : x
  2. Step 2: Convert to fraction form
    19,625.40/29,450.28 = 7,938.72/x
  3. Step 3: Cross multiply
    19,625.40x = 29,450.28 × 7,938.72
  4. Step 4: Simplify right side
    19,625.40x = 233,797,526.84
  5. Step 5: Solve for x
    x = 233,797,526.84/19,625.40
  6. Step 6: Final answer
    x = 11,913.01

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1.5x scale

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.