Home / 23,209.50-31,999.20-18,956.07

Finding the Fourth Proportional to 23,209.50, 31,999.20 and 18,956.07

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Solution

The fourth proportional to 23,209.50, 31,999.20 and 18,956.07 is: 26,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,209.50 : 31,999.20 = 18,956.07 : x
  2. Step 2: Convert to fraction form
    23,209.50/31,999.20 = 18,956.07/x
  3. Step 3: Cross multiply
    23,209.50x = 31,999.20 × 18,956.07
  4. Step 4: Simplify right side
    23,209.50x = 606,579,075.14
  5. Step 5: Solve for x
    x = 606,579,075.14/23,209.50
  6. Step 6: Final answer
    x = 26,134.95

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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.