Home / 20,995.79-31,498.12-6,955.02

Finding the Fourth Proportional to 20,995.79, 31,498.12 and 6,955.02

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Solution

The fourth proportional to 20,995.79, 31,498.12 and 6,955.02 is: 10,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.79 : 31,498.12 = 6,955.02 : x
  2. Step 2: Convert to fraction form
    20,995.79/31,498.12 = 6,955.02/x
  3. Step 3: Cross multiply
    20,995.79x = 31,498.12 × 6,955.02
  4. Step 4: Simplify right side
    20,995.79x = 219,070,054.56
  5. Step 5: Solve for x
    x = 219,070,054.56/20,995.79
  6. Step 6: Final answer
    x = 10,434.00

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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.