Home / 43,990.24-65,980.16-12,402.67

Finding the Fourth Proportional to 43,990.24, 65,980.16 and 12,402.67

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Solution

The fourth proportional to 43,990.24, 65,980.16 and 12,402.67 is: 18,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,990.24 : 65,980.16 = 12,402.67 : x
  2. Step 2: Convert to fraction form
    43,990.24/65,980.16 = 12,402.67/x
  3. Step 3: Cross multiply
    43,990.24x = 65,980.16 × 12,402.67
  4. Step 4: Simplify right side
    43,990.24x = 818,330,151.03
  5. Step 5: Solve for x
    x = 818,330,151.03/43,990.24
  6. Step 6: Final answer
    x = 18,602.54

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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.