Home / 30,497.13-42,112.02-19,185.56

Finding the Fourth Proportional to 30,497.13, 42,112.02 and 19,185.56

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Solution

The fourth proportional to 30,497.13, 42,112.02 and 19,185.56 is: 26,492.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,497.13 : 42,112.02 = 19,185.56 : x
  2. Step 2: Convert to fraction form
    30,497.13/42,112.02 = 19,185.56/x
  3. Step 3: Cross multiply
    30,497.13x = 42,112.02 × 19,185.56
  4. Step 4: Simplify right side
    30,497.13x = 807,942,597.82
  5. Step 5: Solve for x
    x = 807,942,597.82/30,497.13
  6. Step 6: Final answer
    x = 26,492.41

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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.