Home / 23,140.35-31,933.80-12,530.03

Finding the Fourth Proportional to 23,140.35, 31,933.80 and 12,530.03

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Solution

The fourth proportional to 23,140.35, 31,933.80 and 12,530.03 is: 17,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.35 : 31,933.80 = 12,530.03 : x
  2. Step 2: Convert to fraction form
    23,140.35/31,933.80 = 12,530.03/x
  3. Step 3: Cross multiply
    23,140.35x = 31,933.80 × 12,530.03
  4. Step 4: Simplify right side
    23,140.35x = 400,131,312.35
  5. Step 5: Solve for x
    x = 400,131,312.35/23,140.35
  6. Step 6: Final answer
    x = 17,291.50

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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.