Home / 37,915.44-52,320.72-20,918.64

Finding the Fourth Proportional to 37,915.44, 52,320.72 and 20,918.64

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Solution

The fourth proportional to 37,915.44, 52,320.72 and 20,918.64 is: 28,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,915.44 : 52,320.72 = 20,918.64 : x
  2. Step 2: Convert to fraction form
    37,915.44/52,320.72 = 20,918.64/x
  3. Step 3: Cross multiply
    37,915.44x = 52,320.72 × 20,918.64
  4. Step 4: Simplify right side
    37,915.44x = 1,094,478,306.22
  5. Step 5: Solve for x
    x = 1,094,478,306.22/37,915.44
  6. Step 6: Final answer
    x = 28,866.30

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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.