Home / 21,300.06-31,948.78-6,507.64

Finding the Fourth Proportional to 21,300.06, 31,948.78 and 6,507.64

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Solution

The fourth proportional to 21,300.06, 31,948.78 and 6,507.64 is: 9,761.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300.06 : 31,948.78 = 6,507.64 : x
  2. Step 2: Convert to fraction form
    21,300.06/31,948.78 = 6,507.64/x
  3. Step 3: Cross multiply
    21,300.06x = 31,948.78 × 6,507.64
  4. Step 4: Simplify right side
    21,300.06x = 207,911,158.68
  5. Step 5: Solve for x
    x = 207,911,158.68/21,300.06
  6. Step 6: Final answer
    x = 9,761.06

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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.