Home / 28,367.18-42,579.72-23,421.05

Finding the Fourth Proportional to 28,367.18, 42,579.72 and 23,421.05

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Solution

The fourth proportional to 28,367.18, 42,579.72 and 23,421.05 is: 35,155.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.18 : 42,579.72 = 23,421.05 : x
  2. Step 2: Convert to fraction form
    28,367.18/42,579.72 = 23,421.05/x
  3. Step 3: Cross multiply
    28,367.18x = 42,579.72 × 23,421.05
  4. Step 4: Simplify right side
    28,367.18x = 997,261,751.11
  5. Step 5: Solve for x
    x = 997,261,751.11/28,367.18
  6. Step 6: Final answer
    x = 35,155.48

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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.