Home / 28,682.50-42,931.62-15,322.09

Finding the Fourth Proportional to 28,682.50, 42,931.62 and 15,322.09

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Solution

The fourth proportional to 28,682.50, 42,931.62 and 15,322.09 is: 22,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.50 : 42,931.62 = 15,322.09 : x
  2. Step 2: Convert to fraction form
    28,682.50/42,931.62 = 15,322.09/x
  3. Step 3: Cross multiply
    28,682.50x = 42,931.62 × 15,322.09
  4. Step 4: Simplify right side
    28,682.50x = 657,802,145.49
  5. Step 5: Solve for x
    x = 657,802,145.49/28,682.50
  6. Step 6: Final answer
    x = 22,933.92

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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.