Home / 28,811.89-39,746.27-19,254.13

Finding the Fourth Proportional to 28,811.89, 39,746.27 and 19,254.13

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Solution

The fourth proportional to 28,811.89, 39,746.27 and 19,254.13 is: 26,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.89 : 39,746.27 = 19,254.13 : x
  2. Step 2: Convert to fraction form
    28,811.89/39,746.27 = 19,254.13/x
  3. Step 3: Cross multiply
    28,811.89x = 39,746.27 × 19,254.13
  4. Step 4: Simplify right side
    28,811.89x = 765,279,798.36
  5. Step 5: Solve for x
    x = 765,279,798.36/28,811.89
  6. Step 6: Final answer
    x = 26,561.25

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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.