Home / 28,666.32-39,556.04-16,088.40

Finding the Fourth Proportional to 28,666.32, 39,556.04 and 16,088.40

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Solution

The fourth proportional to 28,666.32, 39,556.04 and 16,088.40 is: 22,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.32 : 39,556.04 = 16,088.40 : x
  2. Step 2: Convert to fraction form
    28,666.32/39,556.04 = 16,088.40/x
  3. Step 3: Cross multiply
    28,666.32x = 39,556.04 × 16,088.40
  4. Step 4: Simplify right side
    28,666.32x = 636,393,393.94
  5. Step 5: Solve for x
    x = 636,393,393.94/28,666.32
  6. Step 6: Final answer
    x = 22,200.04

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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.