Home / 28,569.66-42,829.84-13,788.96

Finding the Fourth Proportional to 28,569.66, 42,829.84 and 13,788.96

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Solution

The fourth proportional to 28,569.66, 42,829.84 and 13,788.96 is: 20,671.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.66 : 42,829.84 = 13,788.96 : x
  2. Step 2: Convert to fraction form
    28,569.66/42,829.84 = 13,788.96/x
  3. Step 3: Cross multiply
    28,569.66x = 42,829.84 × 13,788.96
  4. Step 4: Simplify right side
    28,569.66x = 590,578,950.57
  5. Step 5: Solve for x
    x = 590,578,950.57/28,569.66
  6. Step 6: Final answer
    x = 20,671.54

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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.