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Finding the Fourth Proportional to 35,597.31, 53,479.02 and 20,816.63

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Solution

The fourth proportional to 35,597.31, 53,479.02 and 20,816.63 is: 31,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,597.31 : 53,479.02 = 20,816.63 : x
  2. Step 2: Convert to fraction form
    35,597.31/53,479.02 = 20,816.63/x
  3. Step 3: Cross multiply
    35,597.31x = 53,479.02 × 20,816.63
  4. Step 4: Simplify right side
    35,597.31x = 1,113,252,972.10
  5. Step 5: Solve for x
    x = 1,113,252,972.10/35,597.31
  6. Step 6: Final answer
    x = 31,273.51

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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.