Home / 28,075.60-42,088.92-10,540.72

Finding the Fourth Proportional to 28,075.60, 42,088.92 and 10,540.72

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Solution

The fourth proportional to 28,075.60, 42,088.92 and 10,540.72 is: 15,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.60 : 42,088.92 = 10,540.72 : x
  2. Step 2: Convert to fraction form
    28,075.60/42,088.92 = 10,540.72/x
  3. Step 3: Cross multiply
    28,075.60x = 42,088.92 × 10,540.72
  4. Step 4: Simplify right side
    28,075.60x = 443,647,520.82
  5. Step 5: Solve for x
    x = 443,647,520.82/28,075.60
  6. Step 6: Final answer
    x = 15,801.89

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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.