Home / 30,168.56-45,252.80-10,436.32

Finding the Fourth Proportional to 30,168.56, 45,252.80 and 10,436.32

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Solution

The fourth proportional to 30,168.56, 45,252.80 and 10,436.32 is: 15,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.56 : 45,252.80 = 10,436.32 : x
  2. Step 2: Convert to fraction form
    30,168.56/45,252.80 = 10,436.32/x
  3. Step 3: Cross multiply
    30,168.56x = 45,252.80 × 10,436.32
  4. Step 4: Simplify right side
    30,168.56x = 472,272,701.70
  5. Step 5: Solve for x
    x = 472,272,701.70/30,168.56
  6. Step 6: Final answer
    x = 15,654.47

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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.