Home / 18,901.04-28,477.69-17,124.32

Finding the Fourth Proportional to 18,901.04, 28,477.69 and 17,124.32

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Solution

The fourth proportional to 18,901.04, 28,477.69 and 17,124.32 is: 25,800.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.04 : 28,477.69 = 17,124.32 : x
  2. Step 2: Convert to fraction form
    18,901.04/28,477.69 = 17,124.32/x
  3. Step 3: Cross multiply
    18,901.04x = 28,477.69 × 17,124.32
  4. Step 4: Simplify right side
    18,901.04x = 487,661,076.42
  5. Step 5: Solve for x
    x = 487,661,076.42/18,901.04
  6. Step 6: Final answer
    x = 25,800.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.