Home / 28,319.32-42,479.93-8,597.81

Finding the Fourth Proportional to 28,319.32, 42,479.93 and 8,597.81

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Solution

The fourth proportional to 28,319.32, 42,479.93 and 8,597.81 is: 12,897.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.32 : 42,479.93 = 8,597.81 : x
  2. Step 2: Convert to fraction form
    28,319.32/42,479.93 = 8,597.81/x
  3. Step 3: Cross multiply
    28,319.32x = 42,479.93 × 8,597.81
  4. Step 4: Simplify right side
    28,319.32x = 365,234,446.28
  5. Step 5: Solve for x
    x = 365,234,446.28/28,319.32
  6. Step 6: Final answer
    x = 12,897.01

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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.