Home / 30,384.90-41,943.95-18,452.08

Finding the Fourth Proportional to 30,384.90, 41,943.95 and 18,452.08

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Solution

The fourth proportional to 30,384.90, 41,943.95 and 18,452.08 is: 25,471.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384.90 : 41,943.95 = 18,452.08 : x
  2. Step 2: Convert to fraction form
    30,384.90/41,943.95 = 18,452.08/x
  3. Step 3: Cross multiply
    30,384.90x = 41,943.95 × 18,452.08
  4. Step 4: Simplify right side
    30,384.90x = 773,953,120.92
  5. Step 5: Solve for x
    x = 773,953,120.92/30,384.90
  6. Step 6: Final answer
    x = 25,471.64

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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.