Home / 28,230.30-42,338.70-16,358.40

Finding the Fourth Proportional to 28,230.30, 42,338.70 and 16,358.40

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Solution

The fourth proportional to 28,230.30, 42,338.70 and 16,358.40 is: 24,533.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.30 : 42,338.70 = 16,358.40 : x
  2. Step 2: Convert to fraction form
    28,230.30/42,338.70 = 16,358.40/x
  3. Step 3: Cross multiply
    28,230.30x = 42,338.70 × 16,358.40
  4. Step 4: Simplify right side
    28,230.30x = 692,593,390.08
  5. Step 5: Solve for x
    x = 692,593,390.08/28,230.30
  6. Step 6: Final answer
    x = 24,533.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.