Home / 30,340.09-45,530.63-10,618.82

Finding the Fourth Proportional to 30,340.09, 45,530.63 and 10,618.82

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Solution

The fourth proportional to 30,340.09, 45,530.63 and 10,618.82 is: 15,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.09 : 45,530.63 = 10,618.82 : x
  2. Step 2: Convert to fraction form
    30,340.09/45,530.63 = 10,618.82/x
  3. Step 3: Cross multiply
    30,340.09x = 45,530.63 × 10,618.82
  4. Step 4: Simplify right side
    30,340.09x = 483,481,564.46
  5. Step 5: Solve for x
    x = 483,481,564.46/30,340.09
  6. Step 6: Final answer
    x = 15,935.40

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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.