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Finding the Fourth Proportional to 35,720.57, 49,294.15 and 19,805.01

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Solution

The fourth proportional to 35,720.57, 49,294.15 and 19,805.01 is: 27,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,720.57 : 49,294.15 = 19,805.01 : x
  2. Step 2: Convert to fraction form
    35,720.57/49,294.15 = 19,805.01/x
  3. Step 3: Cross multiply
    35,720.57x = 49,294.15 × 19,805.01
  4. Step 4: Simplify right side
    35,720.57x = 976,271,084.18
  5. Step 5: Solve for x
    x = 976,271,084.18/35,720.57
  6. Step 6: Final answer
    x = 27,330.79

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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.