Home / 21,303.47-31,955.30-6,512.33

Finding the Fourth Proportional to 21,303.47, 31,955.30 and 6,512.33

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Solution

The fourth proportional to 21,303.47, 31,955.30 and 6,512.33 is: 9,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.47 : 31,955.30 = 6,512.33 : x
  2. Step 2: Convert to fraction form
    21,303.47/31,955.30 = 6,512.33/x
  3. Step 3: Cross multiply
    21,303.47x = 31,955.30 × 6,512.33
  4. Step 4: Simplify right side
    21,303.47x = 208,103,426.29
  5. Step 5: Solve for x
    x = 208,103,426.29/21,303.47
  6. Step 6: Final answer
    x = 9,768.52

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Double scale
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Similar ratio
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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.