Home / 30,215.22-45,307.25-13,560.98

Finding the Fourth Proportional to 30,215.22, 45,307.25 and 13,560.98

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Solution

The fourth proportional to 30,215.22, 45,307.25 and 13,560.98 is: 20,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.22 : 45,307.25 = 13,560.98 : x
  2. Step 2: Convert to fraction form
    30,215.22/45,307.25 = 13,560.98/x
  3. Step 3: Cross multiply
    30,215.22x = 45,307.25 × 13,560.98
  4. Step 4: Simplify right side
    30,215.22x = 614,410,518.47
  5. Step 5: Solve for x
    x = 614,410,518.47/30,215.22
  6. Step 6: Final answer
    x = 20,334.47

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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.