Home / 31,063.06-42,867.09-16,915.60

Finding the Fourth Proportional to 31,063.06, 42,867.09 and 16,915.60

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Solution

The fourth proportional to 31,063.06, 42,867.09 and 16,915.60 is: 23,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,063.06 : 42,867.09 = 16,915.60 : x
  2. Step 2: Convert to fraction form
    31,063.06/42,867.09 = 16,915.60/x
  3. Step 3: Cross multiply
    31,063.06x = 42,867.09 × 16,915.60
  4. Step 4: Simplify right side
    31,063.06x = 725,122,547.60
  5. Step 5: Solve for x
    x = 725,122,547.60/31,063.06
  6. Step 6: Final answer
    x = 23,343.56

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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.