Home / 20,801.16-28,702.28-11,848.84

Finding the Fourth Proportional to 20,801.16, 28,702.28 and 11,848.84

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Solution

The fourth proportional to 20,801.16, 28,702.28 and 11,848.84 is: 16,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.16 : 28,702.28 = 11,848.84 : x
  2. Step 2: Convert to fraction form
    20,801.16/28,702.28 = 11,848.84/x
  3. Step 3: Cross multiply
    20,801.16x = 28,702.28 × 11,848.84
  4. Step 4: Simplify right side
    20,801.16x = 340,088,681.22
  5. Step 5: Solve for x
    x = 340,088,681.22/20,801.16
  6. Step 6: Final answer
    x = 16,349.51

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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.