Home / 30,203.02-45,294.27-11,478.55

Finding the Fourth Proportional to 30,203.02, 45,294.27 and 11,478.55

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Solution

The fourth proportional to 30,203.02, 45,294.27 and 11,478.55 is: 17,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,203.02 : 45,294.27 = 11,478.55 : x
  2. Step 2: Convert to fraction form
    30,203.02/45,294.27 = 11,478.55/x
  3. Step 3: Cross multiply
    30,203.02x = 45,294.27 × 11,478.55
  4. Step 4: Simplify right side
    30,203.02x = 519,912,485.52
  5. Step 5: Solve for x
    x = 519,912,485.52/30,203.02
  6. Step 6: Final answer
    x = 17,213.92

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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.