Home / 30,437.25-42,003.41-18,498.36

Finding the Fourth Proportional to 30,437.25, 42,003.41 and 18,498.36

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Solution

The fourth proportional to 30,437.25, 42,003.41 and 18,498.36 is: 25,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.25 : 42,003.41 = 18,498.36 : x
  2. Step 2: Convert to fraction form
    30,437.25/42,003.41 = 18,498.36/x
  3. Step 3: Cross multiply
    30,437.25x = 42,003.41 × 18,498.36
  4. Step 4: Simplify right side
    30,437.25x = 776,994,106.92
  5. Step 5: Solve for x
    x = 776,994,106.92/30,437.25
  6. Step 6: Final answer
    x = 25,527.74

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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.