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Finding the Fourth Proportional to 35,885.76, 49,517.04 and 19,970.40

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Solution

The fourth proportional to 35,885.76, 49,517.04 and 19,970.40 is: 27,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,885.76 : 49,517.04 = 19,970.40 : x
  2. Step 2: Convert to fraction form
    35,885.76/49,517.04 = 19,970.40/x
  3. Step 3: Cross multiply
    35,885.76x = 49,517.04 × 19,970.40
  4. Step 4: Simplify right side
    35,885.76x = 988,875,095.62
  5. Step 5: Solve for x
    x = 988,875,095.62/35,885.76
  6. Step 6: Final answer
    x = 27,556.20

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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.