Home / 21,347.64-32,021.40-6,556.20

Finding the Fourth Proportional to 21,347.64, 32,021.40 and 6,556.20

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Solution

The fourth proportional to 21,347.64, 32,021.40 and 6,556.20 is: 9,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.64 : 32,021.40 = 6,556.20 : x
  2. Step 2: Convert to fraction form
    21,347.64/32,021.40 = 6,556.20/x
  3. Step 3: Cross multiply
    21,347.64x = 32,021.40 × 6,556.20
  4. Step 4: Simplify right side
    21,347.64x = 209,938,702.68
  5. Step 5: Solve for x
    x = 209,938,702.68/21,347.64
  6. Step 6: Final answer
    x = 9,834.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.