Home / 39,492.20-54,499.06-21,587.16

Finding the Fourth Proportional to 39,492.20, 54,499.06 and 21,587.16

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Solution

The fourth proportional to 39,492.20, 54,499.06 and 21,587.16 is: 29,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,492.20 : 54,499.06 = 21,587.16 : x
  2. Step 2: Convert to fraction form
    39,492.20/54,499.06 = 21,587.16/x
  3. Step 3: Cross multiply
    39,492.20x = 54,499.06 × 21,587.16
  4. Step 4: Simplify right side
    39,492.20x = 1,176,479,928.07
  5. Step 5: Solve for x
    x = 1,176,479,928.07/39,492.20
  6. Step 6: Final answer
    x = 29,790.18

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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.