Home / 20,689.81-31,010.41-9,573.02

Finding the Fourth Proportional to 20,689.81, 31,010.41 and 9,573.02

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Solution

The fourth proportional to 20,689.81, 31,010.41 and 9,573.02 is: 14,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689.81 : 31,010.41 = 9,573.02 : x
  2. Step 2: Convert to fraction form
    20,689.81/31,010.41 = 9,573.02/x
  3. Step 3: Cross multiply
    20,689.81x = 31,010.41 × 9,573.02
  4. Step 4: Simplify right side
    20,689.81x = 296,863,275.14
  5. Step 5: Solve for x
    x = 296,863,275.14/20,689.81
  6. Step 6: Final answer
    x = 14,348.28

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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.