Home / 21,303.72-31,955.67-6,512.58

Finding the Fourth Proportional to 21,303.72, 31,955.67 and 6,512.58

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Solution

The fourth proportional to 21,303.72, 31,955.67 and 6,512.58 is: 9,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.72 : 31,955.67 = 6,512.58 : x
  2. Step 2: Convert to fraction form
    21,303.72/31,955.67 = 6,512.58/x
  3. Step 3: Cross multiply
    21,303.72x = 31,955.67 × 6,512.58
  4. Step 4: Simplify right side
    21,303.72x = 208,113,857.33
  5. Step 5: Solve for x
    x = 208,113,857.33/21,303.72
  6. Step 6: Final answer
    x = 9,768.90

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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.