Home / 21,068.07-31,602.09-6,276.60

Finding the Fourth Proportional to 21,068.07, 31,602.09 and 6,276.60

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Solution

The fourth proportional to 21,068.07, 31,602.09 and 6,276.60 is: 9,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.07 : 31,602.09 = 6,276.60 : x
  2. Step 2: Convert to fraction form
    21,068.07/31,602.09 = 6,276.60/x
  3. Step 3: Cross multiply
    21,068.07x = 31,602.09 × 6,276.60
  4. Step 4: Simplify right side
    21,068.07x = 198,353,678.09
  5. Step 5: Solve for x
    x = 198,353,678.09/21,068.07
  6. Step 6: Final answer
    x = 9,414.90

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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.