Home / 39,960.08-59,940.10-11,880.01

Finding the Fourth Proportional to 39,960.08, 59,940.10 and 11,880.01

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Solution

The fourth proportional to 39,960.08, 59,940.10 and 11,880.01 is: 17,820.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.08 : 59,940.10 = 11,880.01 : x
  2. Step 2: Convert to fraction form
    39,960.08/59,940.10 = 11,880.01/x
  3. Step 3: Cross multiply
    39,960.08x = 59,940.10 × 11,880.01
  4. Step 4: Simplify right side
    39,960.08x = 712,089,077.18
  5. Step 5: Solve for x
    x = 712,089,077.18/39,960.08
  6. Step 6: Final answer
    x = 17,820.01

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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.