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Finding the Fourth Proportional to 30,657.47, 45,999.27 and 11,950.67

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Solution

The fourth proportional to 30,657.47, 45,999.27 and 11,950.67 is: 17,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657.47 : 45,999.27 = 11,950.67 : x
  2. Step 2: Convert to fraction form
    30,657.47/45,999.27 = 11,950.67/x
  3. Step 3: Cross multiply
    30,657.47x = 45,999.27 × 11,950.67
  4. Step 4: Simplify right side
    30,657.47x = 549,722,301.54
  5. Step 5: Solve for x
    x = 549,722,301.54/30,657.47
  6. Step 6: Final answer
    x = 17,931.11

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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.