Home / 28,113.75-38,787.93-16,785.09

Finding the Fourth Proportional to 28,113.75, 38,787.93 and 16,785.09

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Solution

The fourth proportional to 28,113.75, 38,787.93 and 16,785.09 is: 23,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.75 : 38,787.93 = 16,785.09 : x
  2. Step 2: Convert to fraction form
    28,113.75/38,787.93 = 16,785.09/x
  3. Step 3: Cross multiply
    28,113.75x = 38,787.93 × 16,785.09
  4. Step 4: Simplify right side
    28,113.75x = 651,058,895.96
  5. Step 5: Solve for x
    x = 651,058,895.96/28,113.75
  6. Step 6: Final answer
    x = 23,158.02

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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.