Home / 19,287.48-28,930.77-8,899.20

Finding the Fourth Proportional to 19,287.48, 28,930.77 and 8,899.20

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Solution

The fourth proportional to 19,287.48, 28,930.77 and 8,899.20 is: 13,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.48 : 28,930.77 = 8,899.20 : x
  2. Step 2: Convert to fraction form
    19,287.48/28,930.77 = 8,899.20/x
  3. Step 3: Cross multiply
    19,287.48x = 28,930.77 × 8,899.20
  4. Step 4: Simplify right side
    19,287.48x = 257,460,708.38
  5. Step 5: Solve for x
    x = 257,460,708.38/19,287.48
  6. Step 6: Final answer
    x = 13,348.59

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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.