Home / 28,057.32-38,719.91-15,482.88

Finding the Fourth Proportional to 28,057.32, 38,719.91 and 15,482.88

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Solution

The fourth proportional to 28,057.32, 38,719.91 and 15,482.88 is: 21,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057.32 : 38,719.91 = 15,482.88 : x
  2. Step 2: Convert to fraction form
    28,057.32/38,719.91 = 15,482.88/x
  3. Step 3: Cross multiply
    28,057.32x = 38,719.91 × 15,482.88
  4. Step 4: Simplify right side
    28,057.32x = 599,495,720.14
  5. Step 5: Solve for x
    x = 599,495,720.14/28,057.32
  6. Step 6: Final answer
    x = 21,366.82

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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.