Home / 38,646.86-57,970.35-12,353.72

Finding the Fourth Proportional to 38,646.86, 57,970.35 and 12,353.72

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Solution

The fourth proportional to 38,646.86, 57,970.35 and 12,353.72 is: 18,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.86 : 57,970.35 = 12,353.72 : x
  2. Step 2: Convert to fraction form
    38,646.86/57,970.35 = 12,353.72/x
  3. Step 3: Cross multiply
    38,646.86x = 57,970.35 × 12,353.72
  4. Step 4: Simplify right side
    38,646.86x = 716,149,182.35
  5. Step 5: Solve for x
    x = 716,149,182.35/38,646.86
  6. Step 6: Final answer
    x = 18,530.59

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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.