Home / 20,689.06-31,009.28-9,572.26

Finding the Fourth Proportional to 20,689.06, 31,009.28 and 9,572.26

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Solution

The fourth proportional to 20,689.06, 31,009.28 and 9,572.26 is: 14,347.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689.06 : 31,009.28 = 9,572.26 : x
  2. Step 2: Convert to fraction form
    20,689.06/31,009.28 = 9,572.26/x
  3. Step 3: Cross multiply
    20,689.06x = 31,009.28 × 9,572.26
  4. Step 4: Simplify right side
    20,689.06x = 296,828,890.57
  5. Step 5: Solve for x
    x = 296,828,890.57/20,689.06
  6. Step 6: Final answer
    x = 14,347.14

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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.