Home / 19,133.80-28,710.22-12,812.92

Finding the Fourth Proportional to 19,133.80, 28,710.22 and 12,812.92

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Solution

The fourth proportional to 19,133.80, 28,710.22 and 12,812.92 is: 19,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.80 : 28,710.22 = 12,812.92 : x
  2. Step 2: Convert to fraction form
    19,133.80/28,710.22 = 12,812.92/x
  3. Step 3: Cross multiply
    19,133.80x = 28,710.22 × 12,812.92
  4. Step 4: Simplify right side
    19,133.80x = 367,861,752.04
  5. Step 5: Solve for x
    x = 367,861,752.04/19,133.80
  6. Step 6: Final answer
    x = 19,225.76

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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.