Home / 39,720.08-59,550.96-18,958.16

Finding the Fourth Proportional to 39,720.08, 59,550.96 and 18,958.16

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Solution

The fourth proportional to 39,720.08, 59,550.96 and 18,958.16 is: 28,423.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.08 : 59,550.96 = 18,958.16 : x
  2. Step 2: Convert to fraction form
    39,720.08/59,550.96 = 18,958.16/x
  3. Step 3: Cross multiply
    39,720.08x = 59,550.96 × 18,958.16
  4. Step 4: Simplify right side
    39,720.08x = 1,128,976,627.83
  5. Step 5: Solve for x
    x = 1,128,976,627.83/39,720.08
  6. Step 6: Final answer
    x = 28,423.32

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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.