Home / 28,122.81-38,803.01-16,795.95

Finding the Fourth Proportional to 28,122.81, 38,803.01 and 16,795.95

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Solution

The fourth proportional to 28,122.81, 38,803.01 and 16,795.95 is: 23,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.81 : 38,803.01 = 16,795.95 : x
  2. Step 2: Convert to fraction form
    28,122.81/38,803.01 = 16,795.95/x
  3. Step 3: Cross multiply
    28,122.81x = 38,803.01 × 16,795.95
  4. Step 4: Simplify right side
    28,122.81x = 651,733,331.83
  5. Step 5: Solve for x
    x = 651,733,331.83/28,122.81
  6. Step 6: Final answer
    x = 23,174.55

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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.