Home / 38,739.64-53,460.69-21,972.64

Finding the Fourth Proportional to 38,739.64, 53,460.69 and 21,972.64

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Solution

The fourth proportional to 38,739.64, 53,460.69 and 21,972.64 is: 30,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,739.64 : 53,460.69 = 21,972.64 : x
  2. Step 2: Convert to fraction form
    38,739.64/53,460.69 = 21,972.64/x
  3. Step 3: Cross multiply
    38,739.64x = 53,460.69 × 21,972.64
  4. Step 4: Simplify right side
    38,739.64x = 1,174,672,495.52
  5. Step 5: Solve for x
    x = 1,174,672,495.52/38,739.64
  6. Step 6: Final answer
    x = 30,322.24

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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.