Home / 28,113.72-38,797.41-16,781.01

Finding the Fourth Proportional to 28,113.72, 38,797.41 and 16,781.01

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Solution

The fourth proportional to 28,113.72, 38,797.41 and 16,781.01 is: 23,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.72 : 38,797.41 = 16,781.01 : x
  2. Step 2: Convert to fraction form
    28,113.72/38,797.41 = 16,781.01/x
  3. Step 3: Cross multiply
    28,113.72x = 38,797.41 × 16,781.01
  4. Step 4: Simplify right side
    28,113.72x = 651,059,641.28
  5. Step 5: Solve for x
    x = 651,059,641.28/28,113.72
  6. Step 6: Final answer
    x = 23,158.08

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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.