Home / 35,492.70-48,979.82-20,386.34

Finding the Fourth Proportional to 35,492.70, 48,979.82 and 20,386.34

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Solution

The fourth proportional to 35,492.70, 48,979.82 and 20,386.34 is: 28,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,492.70 : 48,979.82 = 20,386.34 : x
  2. Step 2: Convert to fraction form
    35,492.70/48,979.82 = 20,386.34/x
  3. Step 3: Cross multiply
    35,492.70x = 48,979.82 × 20,386.34
  4. Step 4: Simplify right side
    35,492.70x = 998,519,263.66
  5. Step 5: Solve for x
    x = 998,519,263.66/35,492.70
  6. Step 6: Final answer
    x = 28,133.09

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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.