Home / 28,785.14-39,722.86-16,038.32

Finding the Fourth Proportional to 28,785.14, 39,722.86 and 16,038.32

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Solution

The fourth proportional to 28,785.14, 39,722.86 and 16,038.32 is: 22,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.14 : 39,722.86 = 16,038.32 : x
  2. Step 2: Convert to fraction form
    28,785.14/39,722.86 = 16,038.32/x
  3. Step 3: Cross multiply
    28,785.14x = 39,722.86 × 16,038.32
  4. Step 4: Simplify right side
    28,785.14x = 637,087,940.00
  5. Step 5: Solve for x
    x = 637,087,940.00/28,785.14
  6. Step 6: Final answer
    x = 22,132.53

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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.