Home / 22,720.79-34,084.43-7,139.63

Finding the Fourth Proportional to 22,720.79, 34,084.43 and 7,139.63

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Solution

The fourth proportional to 22,720.79, 34,084.43 and 7,139.63 is: 10,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.79 : 34,084.43 = 7,139.63 : x
  2. Step 2: Convert to fraction form
    22,720.79/34,084.43 = 7,139.63/x
  3. Step 3: Cross multiply
    22,720.79x = 34,084.43 × 7,139.63
  4. Step 4: Simplify right side
    22,720.79x = 243,350,012.84
  5. Step 5: Solve for x
    x = 243,350,012.84/22,720.79
  6. Step 6: Final answer
    x = 10,710.46

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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.