Home / 31,828.64-43,941.84-21,253.28

Finding the Fourth Proportional to 31,828.64, 43,941.84 and 21,253.28

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Solution

The fourth proportional to 31,828.64, 43,941.84 and 21,253.28 is: 29,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,828.64 : 43,941.84 = 21,253.28 : x
  2. Step 2: Convert to fraction form
    31,828.64/43,941.84 = 21,253.28/x
  3. Step 3: Cross multiply
    31,828.64x = 43,941.84 × 21,253.28
  4. Step 4: Simplify right side
    31,828.64x = 933,908,229.24
  5. Step 5: Solve for x
    x = 933,908,229.24/31,828.64
  6. Step 6: Final answer
    x = 29,341.76

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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.