Home / 20,575.34-28,383.54-13,008.93

Finding the Fourth Proportional to 20,575.34, 28,383.54 and 13,008.93

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Solution

The fourth proportional to 20,575.34, 28,383.54 and 13,008.93 is: 17,945.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.34 : 28,383.54 = 13,008.93 : x
  2. Step 2: Convert to fraction form
    20,575.34/28,383.54 = 13,008.93/x
  3. Step 3: Cross multiply
    20,575.34x = 28,383.54 × 13,008.93
  4. Step 4: Simplify right side
    20,575.34x = 369,239,417.01
  5. Step 5: Solve for x
    x = 369,239,417.01/20,575.34
  6. Step 6: Final answer
    x = 17,945.73

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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.