Home / 30,479.28-42,063.60-17,054.84

Finding the Fourth Proportional to 30,479.28, 42,063.60 and 17,054.84

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Solution

The fourth proportional to 30,479.28, 42,063.60 and 17,054.84 is: 23,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479.28 : 42,063.60 = 17,054.84 : x
  2. Step 2: Convert to fraction form
    30,479.28/42,063.60 = 17,054.84/x
  3. Step 3: Cross multiply
    30,479.28x = 42,063.60 × 17,054.84
  4. Step 4: Simplify right side
    30,479.28x = 717,387,967.82
  5. Step 5: Solve for x
    x = 717,387,967.82/30,479.28
  6. Step 6: Final answer
    x = 23,536.91

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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.