Home / 28,615.08-39,482.19-18,018.66

Finding the Fourth Proportional to 28,615.08, 39,482.19 and 18,018.66

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Solution

The fourth proportional to 28,615.08, 39,482.19 and 18,018.66 is: 24,861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.08 : 39,482.19 = 18,018.66 : x
  2. Step 2: Convert to fraction form
    28,615.08/39,482.19 = 18,018.66/x
  3. Step 3: Cross multiply
    28,615.08x = 39,482.19 × 18,018.66
  4. Step 4: Simplify right side
    28,615.08x = 711,416,157.67
  5. Step 5: Solve for x
    x = 711,416,157.67/28,615.08
  6. Step 6: Final answer
    x = 24,861.58

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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.