Home / 25,643.92-38,450.36-12,483.12

Finding the Fourth Proportional to 25,643.92, 38,450.36 and 12,483.12

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Solution

The fourth proportional to 25,643.92, 38,450.36 and 12,483.12 is: 18,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643.92 : 38,450.36 = 12,483.12 : x
  2. Step 2: Convert to fraction form
    25,643.92/38,450.36 = 12,483.12/x
  3. Step 3: Cross multiply
    25,643.92x = 38,450.36 × 12,483.12
  4. Step 4: Simplify right side
    25,643.92x = 479,980,457.92
  5. Step 5: Solve for x
    x = 479,980,457.92/25,643.92
  6. Step 6: Final answer
    x = 18,717.13

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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.