Home / 27,899.16-38,518.92-19,398.48

Finding the Fourth Proportional to 27,899.16, 38,518.92 and 19,398.48

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Solution

The fourth proportional to 27,899.16, 38,518.92 and 19,398.48 is: 26,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.16 : 38,518.92 = 19,398.48 : x
  2. Step 2: Convert to fraction form
    27,899.16/38,518.92 = 19,398.48/x
  3. Step 3: Cross multiply
    27,899.16x = 38,518.92 × 19,398.48
  4. Step 4: Simplify right side
    27,899.16x = 747,208,499.24
  5. Step 5: Solve for x
    x = 747,208,499.24/27,899.16
  6. Step 6: Final answer
    x = 26,782.47

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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.