Home / 23,048.11-31,811.57-15,085.70

Finding the Fourth Proportional to 23,048.11, 31,811.57 and 15,085.70

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Solution

The fourth proportional to 23,048.11, 31,811.57 and 15,085.70 is: 20,821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,048.11 : 31,811.57 = 15,085.70 : x
  2. Step 2: Convert to fraction form
    23,048.11/31,811.57 = 15,085.70/x
  3. Step 3: Cross multiply
    23,048.11x = 31,811.57 × 15,085.70
  4. Step 4: Simplify right side
    23,048.11x = 479,899,801.55
  5. Step 5: Solve for x
    x = 479,899,801.55/23,048.11
  6. Step 6: Final answer
    x = 20,821.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.