Home / 28,639.60-39,522.08-16,064.32

Finding the Fourth Proportional to 28,639.60, 39,522.08 and 16,064.32

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Solution

The fourth proportional to 28,639.60, 39,522.08 and 16,064.32 is: 22,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.60 : 39,522.08 = 16,064.32 : x
  2. Step 2: Convert to fraction form
    28,639.60/39,522.08 = 16,064.32/x
  3. Step 3: Cross multiply
    28,639.60x = 39,522.08 × 16,064.32
  4. Step 4: Simplify right side
    28,639.60x = 634,895,340.19
  5. Step 5: Solve for x
    x = 634,895,340.19/28,639.60
  6. Step 6: Final answer
    x = 22,168.44

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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.