Home / 38,653.24-57,990.12-12,358.48

Finding the Fourth Proportional to 38,653.24, 57,990.12 and 12,358.48

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Solution

The fourth proportional to 38,653.24, 57,990.12 and 12,358.48 is: 18,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,653.24 : 57,990.12 = 12,358.48 : x
  2. Step 2: Convert to fraction form
    38,653.24/57,990.12 = 12,358.48/x
  3. Step 3: Cross multiply
    38,653.24x = 57,990.12 × 12,358.48
  4. Step 4: Simplify right side
    38,653.24x = 716,669,738.22
  5. Step 5: Solve for x
    x = 716,669,738.22/38,653.24
  6. Step 6: Final answer
    x = 18,541.00

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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.