Home / 28,518.89-39,337.53-18,293.74

Finding the Fourth Proportional to 28,518.89, 39,337.53 and 18,293.74

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Solution

The fourth proportional to 28,518.89, 39,337.53 and 18,293.74 is: 25,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.89 : 39,337.53 = 18,293.74 : x
  2. Step 2: Convert to fraction form
    28,518.89/39,337.53 = 18,293.74/x
  3. Step 3: Cross multiply
    28,518.89x = 39,337.53 × 18,293.74
  4. Step 4: Simplify right side
    28,518.89x = 719,630,546.06
  5. Step 5: Solve for x
    x = 719,630,546.06/28,518.89
  6. Step 6: Final answer
    x = 25,233.47

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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.