Home / 20,056.38-27,667.08-12,970.50

Finding the Fourth Proportional to 20,056.38, 27,667.08 and 12,970.50

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Solution

The fourth proportional to 20,056.38, 27,667.08 and 12,970.50 is: 17,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.38 : 27,667.08 = 12,970.50 : x
  2. Step 2: Convert to fraction form
    20,056.38/27,667.08 = 12,970.50/x
  3. Step 3: Cross multiply
    20,056.38x = 27,667.08 × 12,970.50
  4. Step 4: Simplify right side
    20,056.38x = 358,855,861.14
  5. Step 5: Solve for x
    x = 358,855,861.14/20,056.38
  6. Step 6: Final answer
    x = 17,892.35

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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.