Home / 28,950.08-39,970.04-22,270.61

Finding the Fourth Proportional to 28,950.08, 39,970.04 and 22,270.61

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Solution

The fourth proportional to 28,950.08, 39,970.04 and 22,270.61 is: 30,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,950.08 : 39,970.04 = 22,270.61 : x
  2. Step 2: Convert to fraction form
    28,950.08/39,970.04 = 22,270.61/x
  3. Step 3: Cross multiply
    28,950.08x = 39,970.04 × 22,270.61
  4. Step 4: Simplify right side
    28,950.08x = 890,156,861.32
  5. Step 5: Solve for x
    x = 890,156,861.32/28,950.08
  6. Step 6: Final answer
    x = 30,748.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.