Home / 39,019.20-58,528.80-19,311.60

Finding the Fourth Proportional to 39,019.20, 58,528.80 and 19,311.60

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Solution

The fourth proportional to 39,019.20, 58,528.80 and 19,311.60 is: 28,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,019.20 : 58,528.80 = 19,311.60 : x
  2. Step 2: Convert to fraction form
    39,019.20/58,528.80 = 19,311.60/x
  3. Step 3: Cross multiply
    39,019.20x = 58,528.80 × 19,311.60
  4. Step 4: Simplify right side
    39,019.20x = 1,130,284,774.08
  5. Step 5: Solve for x
    x = 1,130,284,774.08/39,019.20
  6. Step 6: Final answer
    x = 28,967.40

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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.