Home / 20,645.40-28,488.06-17,094.36

Finding the Fourth Proportional to 20,645.40, 28,488.06 and 17,094.36

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Solution

The fourth proportional to 20,645.40, 28,488.06 and 17,094.36 is: 23,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.40 : 28,488.06 = 17,094.36 : x
  2. Step 2: Convert to fraction form
    20,645.40/28,488.06 = 17,094.36/x
  3. Step 3: Cross multiply
    20,645.40x = 28,488.06 × 17,094.36
  4. Step 4: Simplify right side
    20,645.40x = 486,985,153.34
  5. Step 5: Solve for x
    x = 486,985,153.34/20,645.40
  6. Step 6: Final answer
    x = 23,588.07

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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.