Home / 20,702.71-28,569.65-11,626.81

Finding the Fourth Proportional to 20,702.71, 28,569.65 and 11,626.81

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Solution

The fourth proportional to 20,702.71, 28,569.65 and 11,626.81 is: 16,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.71 : 28,569.65 = 11,626.81 : x
  2. Step 2: Convert to fraction form
    20,702.71/28,569.65 = 11,626.81/x
  3. Step 3: Cross multiply
    20,702.71x = 28,569.65 × 11,626.81
  4. Step 4: Simplify right side
    20,702.71x = 332,173,762.76
  5. Step 5: Solve for x
    x = 332,173,762.76/20,702.71
  6. Step 6: Final answer
    x = 16,044.94

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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.