Home / 34,970.28-48,255.36-20,820.42

Finding the Fourth Proportional to 34,970.28, 48,255.36 and 20,820.42

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Solution

The fourth proportional to 34,970.28, 48,255.36 and 20,820.42 is: 28,730.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,970.28 : 48,255.36 = 20,820.42 : x
  2. Step 2: Convert to fraction form
    34,970.28/48,255.36 = 20,820.42/x
  3. Step 3: Cross multiply
    34,970.28x = 48,255.36 × 20,820.42
  4. Step 4: Simplify right side
    34,970.28x = 1,004,696,862.45
  5. Step 5: Solve for x
    x = 1,004,696,862.45/34,970.28
  6. Step 6: Final answer
    x = 28,730.02

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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.