Home / 21,286.08-31,901.60-14,701.76

Finding the Fourth Proportional to 21,286.08, 31,901.60 and 14,701.76

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Solution

The fourth proportional to 21,286.08, 31,901.60 and 14,701.76 is: 22,033.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.08 : 31,901.60 = 14,701.76 : x
  2. Step 2: Convert to fraction form
    21,286.08/31,901.60 = 14,701.76/x
  3. Step 3: Cross multiply
    21,286.08x = 31,901.60 × 14,701.76
  4. Step 4: Simplify right side
    21,286.08x = 469,009,666.82
  5. Step 5: Solve for x
    x = 469,009,666.82/21,286.08
  6. Step 6: Final answer
    x = 22,033.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.