Home / 23,140.89-34,695.74-18,703.91

Finding the Fourth Proportional to 23,140.89, 34,695.74 and 18,703.91

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Solution

The fourth proportional to 23,140.89, 34,695.74 and 18,703.91 is: 28,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.89 : 34,695.74 = 18,703.91 : x
  2. Step 2: Convert to fraction form
    23,140.89/34,695.74 = 18,703.91/x
  3. Step 3: Cross multiply
    23,140.89x = 34,695.74 × 18,703.91
  4. Step 4: Simplify right side
    23,140.89x = 648,946,131.84
  5. Step 5: Solve for x
    x = 648,946,131.84/23,140.89
  6. Step 6: Final answer
    x = 28,043.27

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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.