Home / 28,152.10-42,225.72-8,435.08

Finding the Fourth Proportional to 28,152.10, 42,225.72 and 8,435.08

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Solution

The fourth proportional to 28,152.10, 42,225.72 and 8,435.08 is: 12,651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.10 : 42,225.72 = 8,435.08 : x
  2. Step 2: Convert to fraction form
    28,152.10/42,225.72 = 8,435.08/x
  3. Step 3: Cross multiply
    28,152.10x = 42,225.72 × 8,435.08
  4. Step 4: Simplify right side
    28,152.10x = 356,177,326.26
  5. Step 5: Solve for x
    x = 356,177,326.26/28,152.10
  6. Step 6: Final answer
    x = 12,651.89

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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.