Home / 35,485.51-48,967.88-20,380.63

Finding the Fourth Proportional to 35,485.51, 48,967.88 and 20,380.63

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Solution

The fourth proportional to 35,485.51, 48,967.88 and 20,380.63 is: 28,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,485.51 : 48,967.88 = 20,380.63 : x
  2. Step 2: Convert to fraction form
    35,485.51/48,967.88 = 20,380.63/x
  3. Step 3: Cross multiply
    35,485.51x = 48,967.88 × 20,380.63
  4. Step 4: Simplify right side
    35,485.51x = 997,996,172.70
  5. Step 5: Solve for x
    x = 997,996,172.70/35,485.51
  6. Step 6: Final answer
    x = 28,124.05

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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.