Home / 28,258.36-38,991.98-16,319.80

Finding the Fourth Proportional to 28,258.36, 38,991.98 and 16,319.80

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Solution

The fourth proportional to 28,258.36, 38,991.98 and 16,319.80 is: 22,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.36 : 38,991.98 = 16,319.80 : x
  2. Step 2: Convert to fraction form
    28,258.36/38,991.98 = 16,319.80/x
  3. Step 3: Cross multiply
    28,258.36x = 38,991.98 × 16,319.80
  4. Step 4: Simplify right side
    28,258.36x = 636,341,315.20
  5. Step 5: Solve for x
    x = 636,341,315.20/28,258.36
  6. Step 6: Final answer
    x = 22,518.69

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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.