Home / 35,915.28-49,563.12-20,810.88

Finding the Fourth Proportional to 35,915.28, 49,563.12 and 20,810.88

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Solution

The fourth proportional to 35,915.28, 49,563.12 and 20,810.88 is: 28,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,915.28 : 49,563.12 = 20,810.88 : x
  2. Step 2: Convert to fraction form
    35,915.28/49,563.12 = 20,810.88/x
  3. Step 3: Cross multiply
    35,915.28x = 49,563.12 × 20,810.88
  4. Step 4: Simplify right side
    35,915.28x = 1,031,452,142.75
  5. Step 5: Solve for x
    x = 1,031,452,142.75/35,915.28
  6. Step 6: Final answer
    x = 28,719.03

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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.