Home / 38,985.56-58,485.54-12,338.25

Finding the Fourth Proportional to 38,985.56, 58,485.54 and 12,338.25

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Solution

The fourth proportional to 38,985.56, 58,485.54 and 12,338.25 is: 18,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.56 : 58,485.54 = 12,338.25 : x
  2. Step 2: Convert to fraction form
    38,985.56/58,485.54 = 12,338.25/x
  3. Step 3: Cross multiply
    38,985.56x = 58,485.54 × 12,338.25
  4. Step 4: Simplify right side
    38,985.56x = 721,609,213.91
  5. Step 5: Solve for x
    x = 721,609,213.91/38,985.56
  6. Step 6: Final answer
    x = 18,509.66

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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.