Home / 28,781.34-43,176.93-13,200.30

Finding the Fourth Proportional to 28,781.34, 43,176.93 and 13,200.30

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Solution

The fourth proportional to 28,781.34, 43,176.93 and 13,200.30 is: 19,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.34 : 43,176.93 = 13,200.30 : x
  2. Step 2: Convert to fraction form
    28,781.34/43,176.93 = 13,200.30/x
  3. Step 3: Cross multiply
    28,781.34x = 43,176.93 × 13,200.30
  4. Step 4: Simplify right side
    28,781.34x = 569,948,429.08
  5. Step 5: Solve for x
    x = 569,948,429.08/28,781.34
  6. Step 6: Final answer
    x = 19,802.71

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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.