Home / 21,880.08-30,200.04-14,998.32

Finding the Fourth Proportional to 21,880.08, 30,200.04 and 14,998.32

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Solution

The fourth proportional to 21,880.08, 30,200.04 and 14,998.32 is: 20,701.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,880.08 : 30,200.04 = 14,998.32 : x
  2. Step 2: Convert to fraction form
    21,880.08/30,200.04 = 14,998.32/x
  3. Step 3: Cross multiply
    21,880.08x = 30,200.04 × 14,998.32
  4. Step 4: Simplify right side
    21,880.08x = 452,949,863.93
  5. Step 5: Solve for x
    x = 452,949,863.93/21,880.08
  6. Step 6: Final answer
    x = 20,701.47

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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.