Home / 20,733.24-31,079.70-10,313.40

Finding the Fourth Proportional to 20,733.24, 31,079.70 and 10,313.40

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Solution

The fourth proportional to 20,733.24, 31,079.70 and 10,313.40 is: 15,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.24 : 31,079.70 = 10,313.40 : x
  2. Step 2: Convert to fraction form
    20,733.24/31,079.70 = 10,313.40/x
  3. Step 3: Cross multiply
    20,733.24x = 31,079.70 × 10,313.40
  4. Step 4: Simplify right side
    20,733.24x = 320,537,377.98
  5. Step 5: Solve for x
    x = 320,537,377.98/20,733.24
  6. Step 6: Final answer
    x = 15,460.07

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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.