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Finding the Fourth Proportional to 30,484.54, 42,070.29 and 17,054.99

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Solution

The fourth proportional to 30,484.54, 42,070.29 and 17,054.99 is: 23,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,484.54 : 42,070.29 = 17,054.99 : x
  2. Step 2: Convert to fraction form
    30,484.54/42,070.29 = 17,054.99/x
  3. Step 3: Cross multiply
    30,484.54x = 42,070.29 × 17,054.99
  4. Step 4: Simplify right side
    30,484.54x = 717,508,375.25
  5. Step 5: Solve for x
    x = 717,508,375.25/30,484.54
  6. Step 6: Final answer
    x = 23,536.80

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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.