Home / 28,155.92-38,851.32-16,823.00

Finding the Fourth Proportional to 28,155.92, 38,851.32 and 16,823.00

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Solution

The fourth proportional to 28,155.92, 38,851.32 and 16,823.00 is: 23,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155.92 : 38,851.32 = 16,823.00 : x
  2. Step 2: Convert to fraction form
    28,155.92/38,851.32 = 16,823.00/x
  3. Step 3: Cross multiply
    28,155.92x = 38,851.32 × 16,823.00
  4. Step 4: Simplify right side
    28,155.92x = 653,595,923.89
  5. Step 5: Solve for x
    x = 653,595,923.89/28,155.92
  6. Step 6: Final answer
    x = 23,213.45

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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.