Home / 28,353.08-42,527.90-12,553.50

Finding the Fourth Proportional to 28,353.08, 42,527.90 and 12,553.50

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Solution

The fourth proportional to 28,353.08, 42,527.90 and 12,553.50 is: 18,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.08 : 42,527.90 = 12,553.50 : x
  2. Step 2: Convert to fraction form
    28,353.08/42,527.90 = 12,553.50/x
  3. Step 3: Cross multiply
    28,353.08x = 42,527.90 × 12,553.50
  4. Step 4: Simplify right side
    28,353.08x = 533,873,992.65
  5. Step 5: Solve for x
    x = 533,873,992.65/28,353.08
  6. Step 6: Final answer
    x = 18,829.49

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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.