Home / 21,964.32-30,309.60-12,533.76

Finding the Fourth Proportional to 21,964.32, 30,309.60 and 12,533.76

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Solution

The fourth proportional to 21,964.32, 30,309.60 and 12,533.76 is: 17,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.32 : 30,309.60 = 12,533.76 : x
  2. Step 2: Convert to fraction form
    21,964.32/30,309.60 = 12,533.76/x
  3. Step 3: Cross multiply
    21,964.32x = 30,309.60 × 12,533.76
  4. Step 4: Simplify right side
    21,964.32x = 379,893,252.10
  5. Step 5: Solve for x
    x = 379,893,252.10/21,964.32
  6. Step 6: Final answer
    x = 17,295.93

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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.