Home / 30,154.68-45,253.14-12,628.92

Finding the Fourth Proportional to 30,154.68, 45,253.14 and 12,628.92

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Solution

The fourth proportional to 30,154.68, 45,253.14 and 12,628.92 is: 18,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.68 : 45,253.14 = 12,628.92 : x
  2. Step 2: Convert to fraction form
    30,154.68/45,253.14 = 12,628.92/x
  3. Step 3: Cross multiply
    30,154.68x = 45,253.14 × 12,628.92
  4. Step 4: Simplify right side
    30,154.68x = 571,498,284.81
  5. Step 5: Solve for x
    x = 571,498,284.81/30,154.68
  6. Step 6: Final answer
    x = 18,952.23

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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.