Home / 38,787.15-58,128.17-20,080.32

Finding the Fourth Proportional to 38,787.15, 58,128.17 and 20,080.32

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Solution

The fourth proportional to 38,787.15, 58,128.17 and 20,080.32 is: 30,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.15 : 58,128.17 = 20,080.32 : x
  2. Step 2: Convert to fraction form
    38,787.15/58,128.17 = 20,080.32/x
  3. Step 3: Cross multiply
    38,787.15x = 58,128.17 × 20,080.32
  4. Step 4: Simplify right side
    38,787.15x = 1,167,232,263.20
  5. Step 5: Solve for x
    x = 1,167,232,263.20/38,787.15
  6. Step 6: Final answer
    x = 30,093.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.