Home / 29,307.27-40,444.08-15,878.64

Finding the Fourth Proportional to 29,307.27, 40,444.08 and 15,878.64

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Solution

The fourth proportional to 29,307.27, 40,444.08 and 15,878.64 is: 21,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,307.27 : 40,444.08 = 15,878.64 : x
  2. Step 2: Convert to fraction form
    29,307.27/40,444.08 = 15,878.64/x
  3. Step 3: Cross multiply
    29,307.27x = 40,444.08 × 15,878.64
  4. Step 4: Simplify right side
    29,307.27x = 642,196,986.45
  5. Step 5: Solve for x
    x = 642,196,986.45/29,307.27
  6. Step 6: Final answer
    x = 21,912.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.