Home / 39,397.08-54,366.78-21,492.36

Finding the Fourth Proportional to 39,397.08, 54,366.78 and 21,492.36

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Solution

The fourth proportional to 39,397.08, 54,366.78 and 21,492.36 is: 29,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,397.08 : 54,366.78 = 21,492.36 : x
  2. Step 2: Convert to fraction form
    39,397.08/54,366.78 = 21,492.36/x
  3. Step 3: Cross multiply
    39,397.08x = 54,366.78 × 21,492.36
  4. Step 4: Simplify right side
    39,397.08x = 1,168,470,407.80
  5. Step 5: Solve for x
    x = 1,168,470,407.80/39,397.08
  6. Step 6: Final answer
    x = 29,658.81

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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.