Home / 38,018.12-57,023.52-11,715.80

Finding the Fourth Proportional to 38,018.12, 57,023.52 and 11,715.80

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Solution

The fourth proportional to 38,018.12, 57,023.52 and 11,715.80 is: 17,572.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,018.12 : 57,023.52 = 11,715.80 : x
  2. Step 2: Convert to fraction form
    38,018.12/57,023.52 = 11,715.80/x
  3. Step 3: Cross multiply
    38,018.12x = 57,023.52 × 11,715.80
  4. Step 4: Simplify right side
    38,018.12x = 668,076,155.62
  5. Step 5: Solve for x
    x = 668,076,155.62/38,018.12
  6. Step 6: Final answer
    x = 17,572.57

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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.