Home / 38,289.08-57,403.02-19,303.49

Finding the Fourth Proportional to 38,289.08, 57,403.02 and 19,303.49

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Solution

The fourth proportional to 38,289.08, 57,403.02 and 19,303.49 is: 28,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,289.08 : 57,403.02 = 19,303.49 : x
  2. Step 2: Convert to fraction form
    38,289.08/57,403.02 = 19,303.49/x
  3. Step 3: Cross multiply
    38,289.08x = 57,403.02 × 19,303.49
  4. Step 4: Simplify right side
    38,289.08x = 1,108,078,622.54
  5. Step 5: Solve for x
    x = 1,108,078,622.54/38,289.08
  6. Step 6: Final answer
    x = 28,939.81

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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.