Home / 43,581.16-65,371.74-12,416.50

Finding the Fourth Proportional to 43,581.16, 65,371.74 and 12,416.50

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Solution

The fourth proportional to 43,581.16, 65,371.74 and 12,416.50 is: 18,624.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,581.16 : 65,371.74 = 12,416.50 : x
  2. Step 2: Convert to fraction form
    43,581.16/65,371.74 = 12,416.50/x
  3. Step 3: Cross multiply
    43,581.16x = 65,371.74 × 12,416.50
  4. Step 4: Simplify right side
    43,581.16x = 811,688,209.71
  5. Step 5: Solve for x
    x = 811,688,209.71/43,581.16
  6. Step 6: Final answer
    x = 18,624.75

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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.