Home / 28,145.24-38,840.84-16,210.72

Finding the Fourth Proportional to 28,145.24, 38,840.84 and 16,210.72

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Solution

The fourth proportional to 28,145.24, 38,840.84 and 16,210.72 is: 22,371.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.24 : 38,840.84 = 16,210.72 : x
  2. Step 2: Convert to fraction form
    28,145.24/38,840.84 = 16,210.72/x
  3. Step 3: Cross multiply
    28,145.24x = 38,840.84 × 16,210.72
  4. Step 4: Simplify right side
    28,145.24x = 629,637,981.80
  5. Step 5: Solve for x
    x = 629,637,981.80/28,145.24
  6. Step 6: Final answer
    x = 22,371.03

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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.