Home / 20,595.52-28,423.05-11,643.86

Finding the Fourth Proportional to 20,595.52, 28,423.05 and 11,643.86

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Solution

The fourth proportional to 20,595.52, 28,423.05 and 11,643.86 is: 16,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.52 : 28,423.05 = 11,643.86 : x
  2. Step 2: Convert to fraction form
    20,595.52/28,423.05 = 11,643.86/x
  3. Step 3: Cross multiply
    20,595.52x = 28,423.05 × 11,643.86
  4. Step 4: Simplify right side
    20,595.52x = 330,953,935.78
  5. Step 5: Solve for x
    x = 330,953,935.78/20,595.52
  6. Step 6: Final answer
    x = 16,069.22

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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.