Home / 30,195.90-45,293.85-19,698.30

Finding the Fourth Proportional to 30,195.90, 45,293.85 and 19,698.30

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Solution

The fourth proportional to 30,195.90, 45,293.85 and 19,698.30 is: 29,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,195.90 : 45,293.85 = 19,698.30 : x
  2. Step 2: Convert to fraction form
    30,195.90/45,293.85 = 19,698.30/x
  3. Step 3: Cross multiply
    30,195.90x = 45,293.85 × 19,698.30
  4. Step 4: Simplify right side
    30,195.90x = 892,211,845.46
  5. Step 5: Solve for x
    x = 892,211,845.46/30,195.90
  6. Step 6: Final answer
    x = 29,547.45

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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.