Home / 30,601.36-42,207.24-19,848.88

Finding the Fourth Proportional to 30,601.36, 42,207.24 and 19,848.88

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Solution

The fourth proportional to 30,601.36, 42,207.24 and 19,848.88 is: 27,376.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,601.36 : 42,207.24 = 19,848.88 : x
  2. Step 2: Convert to fraction form
    30,601.36/42,207.24 = 19,848.88/x
  3. Step 3: Cross multiply
    30,601.36x = 42,207.24 × 19,848.88
  4. Step 4: Simplify right side
    30,601.36x = 837,766,441.89
  5. Step 5: Solve for x
    x = 837,766,441.89/30,601.36
  6. Step 6: Final answer
    x = 27,376.77

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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.