Home / 43,543.10-65,313.27-12,378.35

Finding the Fourth Proportional to 43,543.10, 65,313.27 and 12,378.35

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Solution

The fourth proportional to 43,543.10, 65,313.27 and 12,378.35 is: 18,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,543.10 : 65,313.27 = 12,378.35 : x
  2. Step 2: Convert to fraction form
    43,543.10/65,313.27 = 12,378.35/x
  3. Step 3: Cross multiply
    43,543.10x = 65,313.27 × 12,378.35
  4. Step 4: Simplify right side
    43,543.10x = 808,470,678.99
  5. Step 5: Solve for x
    x = 808,470,678.99/43,543.10
  6. Step 6: Final answer
    x = 18,567.14

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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.