Home / 30,698.48-42,351.36-19,364.12

Finding the Fourth Proportional to 30,698.48, 42,351.36 and 19,364.12

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Solution

The fourth proportional to 30,698.48, 42,351.36 and 19,364.12 is: 26,714.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,698.48 : 42,351.36 = 19,364.12 : x
  2. Step 2: Convert to fraction form
    30,698.48/42,351.36 = 19,364.12/x
  3. Step 3: Cross multiply
    30,698.48x = 42,351.36 × 19,364.12
  4. Step 4: Simplify right side
    30,698.48x = 820,096,817.20
  5. Step 5: Solve for x
    x = 820,096,817.20/30,698.48
  6. Step 6: Final answer
    x = 26,714.57

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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.