Home / 38,415.88-57,631.65-21,783.34

Finding the Fourth Proportional to 38,415.88, 57,631.65 and 21,783.34

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Solution

The fourth proportional to 38,415.88, 57,631.65 and 21,783.34 is: 32,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.88 : 57,631.65 = 21,783.34 : x
  2. Step 2: Convert to fraction form
    38,415.88/57,631.65 = 21,783.34/x
  3. Step 3: Cross multiply
    38,415.88x = 57,631.65 × 21,783.34
  4. Step 4: Simplify right side
    38,415.88x = 1,255,409,826.71
  5. Step 5: Solve for x
    x = 1,255,409,826.71/38,415.88
  6. Step 6: Final answer
    x = 32,679.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.