Home / 20,599.29-28,426.70-11,646.45

Finding the Fourth Proportional to 20,599.29, 28,426.70 and 11,646.45

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Solution

The fourth proportional to 20,599.29, 28,426.70 and 11,646.45 is: 16,071.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.29 : 28,426.70 = 11,646.45 : x
  2. Step 2: Convert to fraction form
    20,599.29/28,426.70 = 11,646.45/x
  3. Step 3: Cross multiply
    20,599.29x = 28,426.70 × 11,646.45
  4. Step 4: Simplify right side
    20,599.29x = 331,070,081.98
  5. Step 5: Solve for x
    x = 331,070,081.98/20,599.29
  6. Step 6: Final answer
    x = 16,071.92

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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.