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Finding the Fourth Proportional to 35,618, 53,427.02 and 13,436.36

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Solution

The fourth proportional to 35,618, 53,427.02 and 13,436.36 is: 20,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,618 : 53,427.02 = 13,436.36 : x
  2. Step 2: Convert to fraction form
    35,618/53,427.02 = 13,436.36/x
  3. Step 3: Cross multiply
    35,618x = 53,427.02 × 13,436.36
  4. Step 4: Simplify right side
    35,618x = 717,864,674.45
  5. Step 5: Solve for x
    x = 717,864,674.45/35,618
  6. Step 6: Final answer
    x = 20,154.55

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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.