Home / 28,242.10-42,369.23-8,519.01

Finding the Fourth Proportional to 28,242.10, 42,369.23 and 8,519.01

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Solution

The fourth proportional to 28,242.10, 42,369.23 and 8,519.01 is: 12,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.10 : 42,369.23 = 8,519.01 : x
  2. Step 2: Convert to fraction form
    28,242.10/42,369.23 = 8,519.01/x
  3. Step 3: Cross multiply
    28,242.10x = 42,369.23 × 8,519.01
  4. Step 4: Simplify right side
    28,242.10x = 360,943,894.06
  5. Step 5: Solve for x
    x = 360,943,894.06/28,242.10
  6. Step 6: Final answer
    x = 12,780.35

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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.