Home / 20,670.94-28,526.15-12,173.08

Finding the Fourth Proportional to 20,670.94, 28,526.15 and 12,173.08

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Solution

The fourth proportional to 20,670.94, 28,526.15 and 12,173.08 is: 16,799.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.94 : 28,526.15 = 12,173.08 : x
  2. Step 2: Convert to fraction form
    20,670.94/28,526.15 = 12,173.08/x
  3. Step 3: Cross multiply
    20,670.94x = 28,526.15 × 12,173.08
  4. Step 4: Simplify right side
    20,670.94x = 347,251,106.04
  5. Step 5: Solve for x
    x = 347,251,106.04/20,670.94
  6. Step 6: Final answer
    x = 16,799.00

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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.