Home / 27,951.32-38,541.34-21,563.40

Finding the Fourth Proportional to 27,951.32, 38,541.34 and 21,563.40

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Solution

The fourth proportional to 27,951.32, 38,541.34 and 21,563.40 is: 29,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.32 : 38,541.34 = 21,563.40 : x
  2. Step 2: Convert to fraction form
    27,951.32/38,541.34 = 21,563.40/x
  3. Step 3: Cross multiply
    27,951.32x = 38,541.34 × 21,563.40
  4. Step 4: Simplify right side
    27,951.32x = 831,082,330.96
  5. Step 5: Solve for x
    x = 831,082,330.96/27,951.32
  6. Step 6: Final answer
    x = 29,733.21

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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.