Home / 21,159.63-31,732.16-6,364.58

Finding the Fourth Proportional to 21,159.63, 31,732.16 and 6,364.58

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Solution

The fourth proportional to 21,159.63, 31,732.16 and 6,364.58 is: 9,544.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.63 : 31,732.16 = 6,364.58 : x
  2. Step 2: Convert to fraction form
    21,159.63/31,732.16 = 6,364.58/x
  3. Step 3: Cross multiply
    21,159.63x = 31,732.16 × 6,364.58
  4. Step 4: Simplify right side
    21,159.63x = 201,961,680.41
  5. Step 5: Solve for x
    x = 201,961,680.41/21,159.63
  6. Step 6: Final answer
    x = 9,544.67

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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.