Home / 38,927.70-53,720.22-21,022.70

Finding the Fourth Proportional to 38,927.70, 53,720.22 and 21,022.70

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Solution

The fourth proportional to 38,927.70, 53,720.22 and 21,022.70 is: 29,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,927.70 : 53,720.22 = 21,022.70 : x
  2. Step 2: Convert to fraction form
    38,927.70/53,720.22 = 21,022.70/x
  3. Step 3: Cross multiply
    38,927.70x = 53,720.22 × 21,022.70
  4. Step 4: Simplify right side
    38,927.70x = 1,129,343,923.01
  5. Step 5: Solve for x
    x = 1,129,343,923.01/38,927.70
  6. Step 6: Final answer
    x = 29,011.32

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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.