Home / 27,579.96-38,059.74-15,643.08

Finding the Fourth Proportional to 27,579.96, 38,059.74 and 15,643.08

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Solution

The fourth proportional to 27,579.96, 38,059.74 and 15,643.08 is: 21,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.96 : 38,059.74 = 15,643.08 : x
  2. Step 2: Convert to fraction form
    27,579.96/38,059.74 = 15,643.08/x
  3. Step 3: Cross multiply
    27,579.96x = 38,059.74 × 15,643.08
  4. Step 4: Simplify right side
    27,579.96x = 595,371,557.60
  5. Step 5: Solve for x
    x = 595,371,557.60/27,579.96
  6. Step 6: Final answer
    x = 21,587.11

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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.