Home / 20,323.64-28,043.93-11,370.17

Finding the Fourth Proportional to 20,323.64, 28,043.93 and 11,370.17

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Solution

The fourth proportional to 20,323.64, 28,043.93 and 11,370.17 is: 15,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.64 : 28,043.93 = 11,370.17 : x
  2. Step 2: Convert to fraction form
    20,323.64/28,043.93 = 11,370.17/x
  3. Step 3: Cross multiply
    20,323.64x = 28,043.93 × 11,370.17
  4. Step 4: Simplify right side
    20,323.64x = 318,864,139.77
  5. Step 5: Solve for x
    x = 318,864,139.77/20,323.64
  6. Step 6: Final answer
    x = 15,689.33

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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.