Home / 30,097.18-45,138.07-12,340.36

Finding the Fourth Proportional to 30,097.18, 45,138.07 and 12,340.36

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Solution

The fourth proportional to 30,097.18, 45,138.07 and 12,340.36 is: 18,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,097.18 : 45,138.07 = 12,340.36 : x
  2. Step 2: Convert to fraction form
    30,097.18/45,138.07 = 12,340.36/x
  3. Step 3: Cross multiply
    30,097.18x = 45,138.07 × 12,340.36
  4. Step 4: Simplify right side
    30,097.18x = 557,020,033.51
  5. Step 5: Solve for x
    x = 557,020,033.51/30,097.18
  6. Step 6: Final answer
    x = 18,507.38

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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.