Home / 20,021.18-27,630.65-11,068.50

Finding the Fourth Proportional to 20,021.18, 27,630.65 and 11,068.50

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Solution

The fourth proportional to 20,021.18, 27,630.65 and 11,068.50 is: 15,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.18 : 27,630.65 = 11,068.50 : x
  2. Step 2: Convert to fraction form
    20,021.18/27,630.65 = 11,068.50/x
  3. Step 3: Cross multiply
    20,021.18x = 27,630.65 × 11,068.50
  4. Step 4: Simplify right side
    20,021.18x = 305,829,980.81
  5. Step 5: Solve for x
    x = 305,829,980.81/20,021.18
  6. Step 6: Final answer
    x = 15,275.33

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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.