Home / 38,445.72-53,056.62-21,678.36

Finding the Fourth Proportional to 38,445.72, 53,056.62 and 21,678.36

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Solution

The fourth proportional to 38,445.72, 53,056.62 and 21,678.36 is: 29,917.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,445.72 : 53,056.62 = 21,678.36 : x
  2. Step 2: Convert to fraction form
    38,445.72/53,056.62 = 21,678.36/x
  3. Step 3: Cross multiply
    38,445.72x = 53,056.62 × 21,678.36
  4. Step 4: Simplify right side
    38,445.72x = 1,150,180,508.74
  5. Step 5: Solve for x
    x = 1,150,180,508.74/38,445.72
  6. Step 6: Final answer
    x = 29,917.00

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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.