Home / 17,640.13-24,374.93-13,121.04

Finding the Fourth Proportional to 17,640.13, 24,374.93 and 13,121.04

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Solution

The fourth proportional to 17,640.13, 24,374.93 and 13,121.04 is: 18,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.13 : 24,374.93 = 13,121.04 : x
  2. Step 2: Convert to fraction form
    17,640.13/24,374.93 = 13,121.04/x
  3. Step 3: Cross multiply
    17,640.13x = 24,374.93 × 13,121.04
  4. Step 4: Simplify right side
    17,640.13x = 319,824,320.22
  5. Step 5: Solve for x
    x = 319,824,320.22/17,640.13
  6. Step 6: Final answer
    x = 18,130.50

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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.