Home / 42,190.84-63,304.69-18,503.51

Finding the Fourth Proportional to 42,190.84, 63,304.69 and 18,503.51

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Solution

The fourth proportional to 42,190.84, 63,304.69 and 18,503.51 is: 27,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,190.84 : 63,304.69 = 18,503.51 : x
  2. Step 2: Convert to fraction form
    42,190.84/63,304.69 = 18,503.51/x
  3. Step 3: Cross multiply
    42,190.84x = 63,304.69 × 18,503.51
  4. Step 4: Simplify right side
    42,190.84x = 1,171,358,601.68
  5. Step 5: Solve for x
    x = 1,171,358,601.68/42,190.84
  6. Step 6: Final answer
    x = 27,763.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.