Home / 28,037.07-38,690.97-15,461.82

Finding the Fourth Proportional to 28,037.07, 38,690.97 and 15,461.82

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Solution

The fourth proportional to 28,037.07, 38,690.97 and 15,461.82 is: 21,337.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.07 : 38,690.97 = 15,461.82 : x
  2. Step 2: Convert to fraction form
    28,037.07/38,690.97 = 15,461.82/x
  3. Step 3: Cross multiply
    28,037.07x = 38,690.97 × 15,461.82
  4. Step 4: Simplify right side
    28,037.07x = 598,232,813.77
  5. Step 5: Solve for x
    x = 598,232,813.77/28,037.07
  6. Step 6: Final answer
    x = 21,337.21

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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.