Home / 39,219.20-58,828.80-38,830.40

Finding the Fourth Proportional to 39,219.20, 58,828.80 and 38,830.40

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Solution

The fourth proportional to 39,219.20, 58,828.80 and 38,830.40 is: 58,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,219.20 : 58,828.80 = 38,830.40 : x
  2. Step 2: Convert to fraction form
    39,219.20/58,828.80 = 38,830.40/x
  3. Step 3: Cross multiply
    39,219.20x = 58,828.80 × 38,830.40
  4. Step 4: Simplify right side
    39,219.20x = 2,284,345,835.52
  5. Step 5: Solve for x
    x = 2,284,345,835.52/39,219.20
  6. Step 6: Final answer
    x = 58,245.60

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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.