Home / 27,985.46-38,621.69-15,410.21

Finding the Fourth Proportional to 27,985.46, 38,621.69 and 15,410.21

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Solution

The fourth proportional to 27,985.46, 38,621.69 and 15,410.21 is: 21,267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.46 : 38,621.69 = 15,410.21 : x
  2. Step 2: Convert to fraction form
    27,985.46/38,621.69 = 15,410.21/x
  3. Step 3: Cross multiply
    27,985.46x = 38,621.69 × 15,410.21
  4. Step 4: Simplify right side
    27,985.46x = 595,168,083.30
  5. Step 5: Solve for x
    x = 595,168,083.30/27,985.46
  6. Step 6: Final answer
    x = 21,267.05

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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.