Home / 38,439.76-53,047.56-21,444.88

Finding the Fourth Proportional to 38,439.76, 53,047.56 and 21,444.88

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Solution

The fourth proportional to 38,439.76, 53,047.56 and 21,444.88 is: 29,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,439.76 : 53,047.56 = 21,444.88 : x
  2. Step 2: Convert to fraction form
    38,439.76/53,047.56 = 21,444.88/x
  3. Step 3: Cross multiply
    38,439.76x = 53,047.56 × 21,444.88
  4. Step 4: Simplify right side
    38,439.76x = 1,137,598,558.49
  5. Step 5: Solve for x
    x = 1,137,598,558.49/38,439.76
  6. Step 6: Final answer
    x = 29,594.32

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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.