Home / 28,888.77-39,868.37-16,947.75

Finding the Fourth Proportional to 28,888.77, 39,868.37 and 16,947.75

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Solution

The fourth proportional to 28,888.77, 39,868.37 and 16,947.75 is: 23,388.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.77 : 39,868.37 = 16,947.75 : x
  2. Step 2: Convert to fraction form
    28,888.77/39,868.37 = 16,947.75/x
  3. Step 3: Cross multiply
    28,888.77x = 39,868.37 × 16,947.75
  4. Step 4: Simplify right side
    28,888.77x = 675,679,167.67
  5. Step 5: Solve for x
    x = 675,679,167.67/28,888.77
  6. Step 6: Final answer
    x = 23,388.99

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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.