Home / 18,985.63-28,462.30-11,595.28

Finding the Fourth Proportional to 18,985.63, 28,462.30 and 11,595.28

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Solution

The fourth proportional to 18,985.63, 28,462.30 and 11,595.28 is: 17,383.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.63 : 28,462.30 = 11,595.28 : x
  2. Step 2: Convert to fraction form
    18,985.63/28,462.30 = 11,595.28/x
  3. Step 3: Cross multiply
    18,985.63x = 28,462.30 × 11,595.28
  4. Step 4: Simplify right side
    18,985.63x = 330,028,347.50
  5. Step 5: Solve for x
    x = 330,028,347.50/18,985.63
  6. Step 6: Final answer
    x = 17,383.06

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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.