Home / 28,540.95-39,383.85-19,323.77

Finding the Fourth Proportional to 28,540.95, 39,383.85 and 19,323.77

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Solution

The fourth proportional to 28,540.95, 39,383.85 and 19,323.77 is: 26,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.95 : 39,383.85 = 19,323.77 : x
  2. Step 2: Convert to fraction form
    28,540.95/39,383.85 = 19,323.77/x
  3. Step 3: Cross multiply
    28,540.95x = 39,383.85 × 19,323.77
  4. Step 4: Simplify right side
    28,540.95x = 761,044,262.20
  5. Step 5: Solve for x
    x = 761,044,262.20/28,540.95
  6. Step 6: Final answer
    x = 26,664.99

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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.