Home / 38,214.50-52,739.16-21,219.80

Finding the Fourth Proportional to 38,214.50, 52,739.16 and 21,219.80

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Solution

The fourth proportional to 38,214.50, 52,739.16 and 21,219.80 is: 29,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,214.50 : 52,739.16 = 21,219.80 : x
  2. Step 2: Convert to fraction form
    38,214.50/52,739.16 = 21,219.80/x
  3. Step 3: Cross multiply
    38,214.50x = 52,739.16 × 21,219.80
  4. Step 4: Simplify right side
    38,214.50x = 1,119,114,427.37
  5. Step 5: Solve for x
    x = 1,119,114,427.37/38,214.50
  6. Step 6: Final answer
    x = 29,285.07

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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.