Home / 28,784.40-39,721.74-16,037.64

Finding the Fourth Proportional to 28,784.40, 39,721.74 and 16,037.64

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Solution

The fourth proportional to 28,784.40, 39,721.74 and 16,037.64 is: 22,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.40 : 39,721.74 = 16,037.64 : x
  2. Step 2: Convert to fraction form
    28,784.40/39,721.74 = 16,037.64/x
  3. Step 3: Cross multiply
    28,784.40x = 39,721.74 × 16,037.64
  4. Step 4: Simplify right side
    28,784.40x = 637,042,966.29
  5. Step 5: Solve for x
    x = 637,042,966.29/28,784.40
  6. Step 6: Final answer
    x = 22,131.54

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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.