Home / 20,710.20-31,047.93-9,014.70

Finding the Fourth Proportional to 20,710.20, 31,047.93 and 9,014.70

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Solution

The fourth proportional to 20,710.20, 31,047.93 and 9,014.70 is: 13,514.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.20 : 31,047.93 = 9,014.70 : x
  2. Step 2: Convert to fraction form
    20,710.20/31,047.93 = 9,014.70/x
  3. Step 3: Cross multiply
    20,710.20x = 31,047.93 × 9,014.70
  4. Step 4: Simplify right side
    20,710.20x = 279,887,774.57
  5. Step 5: Solve for x
    x = 279,887,774.57/20,710.20
  6. Step 6: Final answer
    x = 13,514.49

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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.