Home / 28,285.61-42,408.22-13,284.35

Finding the Fourth Proportional to 28,285.61, 42,408.22 and 13,284.35

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Solution

The fourth proportional to 28,285.61, 42,408.22 and 13,284.35 is: 19,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.61 : 42,408.22 = 13,284.35 : x
  2. Step 2: Convert to fraction form
    28,285.61/42,408.22 = 13,284.35/x
  3. Step 3: Cross multiply
    28,285.61x = 42,408.22 × 13,284.35
  4. Step 4: Simplify right side
    28,285.61x = 563,365,637.36
  5. Step 5: Solve for x
    x = 563,365,637.36/28,285.61
  6. Step 6: Final answer
    x = 19,917.04

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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.