Home / 19,915.79-29,873.94-5,124.32

Finding the Fourth Proportional to 19,915.79, 29,873.94 and 5,124.32

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Solution

The fourth proportional to 19,915.79, 29,873.94 and 5,124.32 is: 7,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.79 : 29,873.94 = 5,124.32 : x
  2. Step 2: Convert to fraction form
    19,915.79/29,873.94 = 5,124.32/x
  3. Step 3: Cross multiply
    19,915.79x = 29,873.94 × 5,124.32
  4. Step 4: Simplify right side
    19,915.79x = 153,083,478.85
  5. Step 5: Solve for x
    x = 153,083,478.85/19,915.79
  6. Step 6: Final answer
    x = 7,686.54

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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.