Home / 28,564.50-39,419.01-15,989.34

Finding the Fourth Proportional to 28,564.50, 39,419.01 and 15,989.34

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Solution

The fourth proportional to 28,564.50, 39,419.01 and 15,989.34 is: 22,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.50 : 39,419.01 = 15,989.34 : x
  2. Step 2: Convert to fraction form
    28,564.50/39,419.01 = 15,989.34/x
  3. Step 3: Cross multiply
    28,564.50x = 39,419.01 × 15,989.34
  4. Step 4: Simplify right side
    28,564.50x = 630,283,953.35
  5. Step 5: Solve for x
    x = 630,283,953.35/28,564.50
  6. Step 6: Final answer
    x = 22,065.29

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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.