Home / 21,803.55-30,092.34-13,307.52

Finding the Fourth Proportional to 21,803.55, 30,092.34 and 13,307.52

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Solution

The fourth proportional to 21,803.55, 30,092.34 and 13,307.52 is: 18,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.55 : 30,092.34 = 13,307.52 : x
  2. Step 2: Convert to fraction form
    21,803.55/30,092.34 = 13,307.52/x
  3. Step 3: Cross multiply
    21,803.55x = 30,092.34 × 13,307.52
  4. Step 4: Simplify right side
    21,803.55x = 400,454,416.40
  5. Step 5: Solve for x
    x = 400,454,416.40/21,803.55
  6. Step 6: Final answer
    x = 18,366.48

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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.