Home / 30,211.45-45,306.36-11,486.50

Finding the Fourth Proportional to 30,211.45, 45,306.36 and 11,486.50

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Solution

The fourth proportional to 30,211.45, 45,306.36 and 11,486.50 is: 17,225.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.45 : 45,306.36 = 11,486.50 : x
  2. Step 2: Convert to fraction form
    30,211.45/45,306.36 = 11,486.50/x
  3. Step 3: Cross multiply
    30,211.45x = 45,306.36 × 11,486.50
  4. Step 4: Simplify right side
    30,211.45x = 520,411,390.87
  5. Step 5: Solve for x
    x = 520,411,390.87/30,211.45
  6. Step 6: Final answer
    x = 17,225.64

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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.