Home / 35,378.10-48,825.35-20,272.76

Finding the Fourth Proportional to 35,378.10, 48,825.35 and 20,272.76

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Solution

The fourth proportional to 35,378.10, 48,825.35 and 20,272.76 is: 27,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,378.10 : 48,825.35 = 20,272.76 : x
  2. Step 2: Convert to fraction form
    35,378.10/48,825.35 = 20,272.76/x
  3. Step 3: Cross multiply
    35,378.10x = 48,825.35 × 20,272.76
  4. Step 4: Simplify right side
    35,378.10x = 989,824,256.98
  5. Step 5: Solve for x
    x = 989,824,256.98/35,378.10
  6. Step 6: Final answer
    x = 27,978.45

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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.