Home / 35,156.43-48,508.36-20,820.76

Finding the Fourth Proportional to 35,156.43, 48,508.36 and 20,820.76

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Solution

The fourth proportional to 35,156.43, 48,508.36 and 20,820.76 is: 28,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,156.43 : 48,508.36 = 20,820.76 : x
  2. Step 2: Convert to fraction form
    35,156.43/48,508.36 = 20,820.76/x
  3. Step 3: Cross multiply
    35,156.43x = 48,508.36 × 20,820.76
  4. Step 4: Simplify right side
    35,156.43x = 1,009,980,921.55
  5. Step 5: Solve for x
    x = 1,009,980,921.55/35,156.43
  6. Step 6: Final answer
    x = 28,728.20

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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.