Home / 33,378.90-46,061.10-18,270.78

Finding the Fourth Proportional to 33,378.90, 46,061.10 and 18,270.78

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Solution

The fourth proportional to 33,378.90, 46,061.10 and 18,270.78 is: 25,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,378.90 : 46,061.10 = 18,270.78 : x
  2. Step 2: Convert to fraction form
    33,378.90/46,061.10 = 18,270.78/x
  3. Step 3: Cross multiply
    33,378.90x = 46,061.10 × 18,270.78
  4. Step 4: Simplify right side
    33,378.90x = 841,572,224.66
  5. Step 5: Solve for x
    x = 841,572,224.66/33,378.90
  6. Step 6: Final answer
    x = 25,212.70

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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.