Home / 28,310.08-42,448.86-11,681.56

Finding the Fourth Proportional to 28,310.08, 42,448.86 and 11,681.56

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Solution

The fourth proportional to 28,310.08, 42,448.86 and 11,681.56 is: 17,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.08 : 42,448.86 = 11,681.56 : x
  2. Step 2: Convert to fraction form
    28,310.08/42,448.86 = 11,681.56/x
  3. Step 3: Cross multiply
    28,310.08x = 42,448.86 × 11,681.56
  4. Step 4: Simplify right side
    28,310.08x = 495,868,905.02
  5. Step 5: Solve for x
    x = 495,868,905.02/28,310.08
  6. Step 6: Final answer
    x = 17,515.63

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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.