Home / 30,498.03-42,087.51-17,070.53

Finding the Fourth Proportional to 30,498.03, 42,087.51 and 17,070.53

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Solution

The fourth proportional to 30,498.03, 42,087.51 and 17,070.53 is: 23,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,498.03 : 42,087.51 = 17,070.53 : x
  2. Step 2: Convert to fraction form
    30,498.03/42,087.51 = 17,070.53/x
  3. Step 3: Cross multiply
    30,498.03x = 42,087.51 × 17,070.53
  4. Step 4: Simplify right side
    30,498.03x = 718,455,891.64
  5. Step 5: Solve for x
    x = 718,455,891.64/30,498.03
  6. Step 6: Final answer
    x = 23,557.45

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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.