Home / 20,595.77-28,423.61-11,643.35

Finding the Fourth Proportional to 20,595.77, 28,423.61 and 11,643.35

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Solution

The fourth proportional to 20,595.77, 28,423.61 and 11,643.35 is: 16,068.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.77 : 28,423.61 = 11,643.35 : x
  2. Step 2: Convert to fraction form
    20,595.77/28,423.61 = 11,643.35/x
  3. Step 3: Cross multiply
    20,595.77x = 28,423.61 × 11,643.35
  4. Step 4: Simplify right side
    20,595.77x = 330,945,882.82
  5. Step 5: Solve for x
    x = 330,945,882.82/20,595.77
  6. Step 6: Final answer
    x = 16,068.63

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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.