Home / 30,101.31-45,148.73-9,039.15

Finding the Fourth Proportional to 30,101.31, 45,148.73 and 9,039.15

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Solution

The fourth proportional to 30,101.31, 45,148.73 and 9,039.15 is: 13,557.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,101.31 : 45,148.73 = 9,039.15 : x
  2. Step 2: Convert to fraction form
    30,101.31/45,148.73 = 9,039.15/x
  3. Step 3: Cross multiply
    30,101.31x = 45,148.73 × 9,039.15
  4. Step 4: Simplify right side
    30,101.31x = 408,106,097.58
  5. Step 5: Solve for x
    x = 408,106,097.58/30,101.31
  6. Step 6: Final answer
    x = 13,557.75

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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.