Home / 42,700.50-64,043.48-11,528.46

Finding the Fourth Proportional to 42,700.50, 64,043.48 and 11,528.46

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Solution

The fourth proportional to 42,700.50, 64,043.48 and 11,528.46 is: 17,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,700.50 : 64,043.48 = 11,528.46 : x
  2. Step 2: Convert to fraction form
    42,700.50/64,043.48 = 11,528.46/x
  3. Step 3: Cross multiply
    42,700.50x = 64,043.48 × 11,528.46
  4. Step 4: Simplify right side
    42,700.50x = 738,322,697.44
  5. Step 5: Solve for x
    x = 738,322,697.44/42,700.50
  6. Step 6: Final answer
    x = 17,290.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.