Home / 39,915.72-59,879.74-13,614.32

Finding the Fourth Proportional to 39,915.72, 59,879.74 and 13,614.32

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Solution

The fourth proportional to 39,915.72, 59,879.74 and 13,614.32 is: 20,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.72 : 59,879.74 = 13,614.32 : x
  2. Step 2: Convert to fraction form
    39,915.72/59,879.74 = 13,614.32/x
  3. Step 3: Cross multiply
    39,915.72x = 59,879.74 × 13,614.32
  4. Step 4: Simplify right side
    39,915.72x = 815,221,941.88
  5. Step 5: Solve for x
    x = 815,221,941.88/39,915.72
  6. Step 6: Final answer
    x = 20,423.58

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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.