Home / 30,238.70-41,701.49-18,904.58

Finding the Fourth Proportional to 30,238.70, 41,701.49 and 18,904.58

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Solution

The fourth proportional to 30,238.70, 41,701.49 and 18,904.58 is: 26,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.70 : 41,701.49 = 18,904.58 : x
  2. Step 2: Convert to fraction form
    30,238.70/41,701.49 = 18,904.58/x
  3. Step 3: Cross multiply
    30,238.70x = 41,701.49 × 18,904.58
  4. Step 4: Simplify right side
    30,238.70x = 788,349,153.82
  5. Step 5: Solve for x
    x = 788,349,153.82/30,238.70
  6. Step 6: Final answer
    x = 26,070.87

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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.