Home / 20,903.36-28,841.28-12,513.92

Finding the Fourth Proportional to 20,903.36, 28,841.28 and 12,513.92

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Solution

The fourth proportional to 20,903.36, 28,841.28 and 12,513.92 is: 17,266.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.36 : 28,841.28 = 12,513.92 : x
  2. Step 2: Convert to fraction form
    20,903.36/28,841.28 = 12,513.92/x
  3. Step 3: Cross multiply
    20,903.36x = 28,841.28 × 12,513.92
  4. Step 4: Simplify right side
    20,903.36x = 360,917,470.62
  5. Step 5: Solve for x
    x = 360,917,470.62/20,903.36
  6. Step 6: Final answer
    x = 17,266.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.