Home / 43,988.24-65,977.16-12,400.67

Finding the Fourth Proportional to 43,988.24, 65,977.16 and 12,400.67

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Solution

The fourth proportional to 43,988.24, 65,977.16 and 12,400.67 is: 18,599.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,988.24 : 65,977.16 = 12,400.67 : x
  2. Step 2: Convert to fraction form
    43,988.24/65,977.16 = 12,400.67/x
  3. Step 3: Cross multiply
    43,988.24x = 65,977.16 × 12,400.67
  4. Step 4: Simplify right side
    43,988.24x = 818,160,988.70
  5. Step 5: Solve for x
    x = 818,160,988.70/43,988.24
  6. Step 6: Final answer
    x = 18,599.54

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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.