Home / 28,785.08-39,725.16-16,210.64

Finding the Fourth Proportional to 28,785.08, 39,725.16 and 16,210.64

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Solution

The fourth proportional to 28,785.08, 39,725.16 and 16,210.64 is: 22,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.08 : 39,725.16 = 16,210.64 : x
  2. Step 2: Convert to fraction form
    28,785.08/39,725.16 = 16,210.64/x
  3. Step 3: Cross multiply
    28,785.08x = 39,725.16 × 16,210.64
  4. Step 4: Simplify right side
    28,785.08x = 643,970,267.70
  5. Step 5: Solve for x
    x = 643,970,267.70/28,785.08
  6. Step 6: Final answer
    x = 22,371.67

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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.