Home / 18,289.60-25,281.12-16,838.08

Finding the Fourth Proportional to 18,289.60, 25,281.12 and 16,838.08

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Solution

The fourth proportional to 18,289.60, 25,281.12 and 16,838.08 is: 23,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.60 : 25,281.12 = 16,838.08 : x
  2. Step 2: Convert to fraction form
    18,289.60/25,281.12 = 16,838.08/x
  3. Step 3: Cross multiply
    18,289.60x = 25,281.12 × 16,838.08
  4. Step 4: Simplify right side
    18,289.60x = 425,685,521.05
  5. Step 5: Solve for x
    x = 425,685,521.05/18,289.60
  6. Step 6: Final answer
    x = 23,274.73

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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.