Home / 28,365.28-42,542.43-10,830.94

Finding the Fourth Proportional to 28,365.28, 42,542.43 and 10,830.94

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Solution

The fourth proportional to 28,365.28, 42,542.43 and 10,830.94 is: 16,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.28 : 42,542.43 = 10,830.94 : x
  2. Step 2: Convert to fraction form
    28,365.28/42,542.43 = 10,830.94/x
  3. Step 3: Cross multiply
    28,365.28x = 42,542.43 × 10,830.94
  4. Step 4: Simplify right side
    28,365.28x = 460,774,506.78
  5. Step 5: Solve for x
    x = 460,774,506.78/28,365.28
  6. Step 6: Final answer
    x = 16,244.31

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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.