Home / 20,913.39-28,683.52-18,551.43

Finding the Fourth Proportional to 20,913.39, 28,683.52 and 18,551.43

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Solution

The fourth proportional to 20,913.39, 28,683.52 and 18,551.43 is: 25,444.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913.39 : 28,683.52 = 18,551.43 : x
  2. Step 2: Convert to fraction form
    20,913.39/28,683.52 = 18,551.43/x
  3. Step 3: Cross multiply
    20,913.39x = 28,683.52 × 18,551.43
  4. Step 4: Simplify right side
    20,913.39x = 532,120,267.06
  5. Step 5: Solve for x
    x = 532,120,267.06/20,913.39
  6. Step 6: Final answer
    x = 25,444.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.