Home / 20,322.28-28,045.08-12,364.84

Finding the Fourth Proportional to 20,322.28, 28,045.08 and 12,364.84

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Solution

The fourth proportional to 20,322.28, 28,045.08 and 12,364.84 is: 17,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.28 : 28,045.08 = 12,364.84 : x
  2. Step 2: Convert to fraction form
    20,322.28/28,045.08 = 12,364.84/x
  3. Step 3: Cross multiply
    20,322.28x = 28,045.08 × 12,364.84
  4. Step 4: Simplify right side
    20,322.28x = 346,772,926.99
  5. Step 5: Solve for x
    x = 346,772,926.99/20,322.28
  6. Step 6: Final answer
    x = 17,063.68

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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.