Home / 30,498.78-42,088.31-17,070.03

Finding the Fourth Proportional to 30,498.78, 42,088.31 and 17,070.03

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Solution

The fourth proportional to 30,498.78, 42,088.31 and 17,070.03 is: 23,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,498.78 : 42,088.31 = 17,070.03 : x
  2. Step 2: Convert to fraction form
    30,498.78/42,088.31 = 17,070.03/x
  3. Step 3: Cross multiply
    30,498.78x = 42,088.31 × 17,070.03
  4. Step 4: Simplify right side
    30,498.78x = 718,448,819.57
  5. Step 5: Solve for x
    x = 718,448,819.57/30,498.78
  6. Step 6: Final answer
    x = 23,556.64

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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.