Home / 21,304.32-31,956.56-6,513.18

Finding the Fourth Proportional to 21,304.32, 31,956.56 and 6,513.18

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Solution

The fourth proportional to 21,304.32, 31,956.56 and 6,513.18 is: 9,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.32 : 31,956.56 = 6,513.18 : x
  2. Step 2: Convert to fraction form
    21,304.32/31,956.56 = 6,513.18/x
  3. Step 3: Cross multiply
    21,304.32x = 31,956.56 × 6,513.18
  4. Step 4: Simplify right side
    21,304.32x = 208,138,827.46
  5. Step 5: Solve for x
    x = 208,138,827.46/21,304.32
  6. Step 6: Final answer
    x = 9,769.79

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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.