Home / 30,602.36-42,208.62-19,849.88

Finding the Fourth Proportional to 30,602.36, 42,208.62 and 19,849.88

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Solution

The fourth proportional to 30,602.36, 42,208.62 and 19,849.88 is: 27,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602.36 : 42,208.62 = 19,849.88 : x
  2. Step 2: Convert to fraction form
    30,602.36/42,208.62 = 19,849.88/x
  3. Step 3: Cross multiply
    30,602.36x = 42,208.62 × 19,849.88
  4. Step 4: Simplify right side
    30,602.36x = 837,836,041.97
  5. Step 5: Solve for x
    x = 837,836,041.97/30,602.36
  6. Step 6: Final answer
    x = 27,378.15

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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.