Home / 20,598.50-28,424.01-11,646.69

Finding the Fourth Proportional to 20,598.50, 28,424.01 and 11,646.69

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Solution

The fourth proportional to 20,598.50, 28,424.01 and 11,646.69 is: 16,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.50 : 28,424.01 = 11,646.69 : x
  2. Step 2: Convert to fraction form
    20,598.50/28,424.01 = 11,646.69/x
  3. Step 3: Cross multiply
    20,598.50x = 28,424.01 × 11,646.69
  4. Step 4: Simplify right side
    20,598.50x = 331,045,570.11
  5. Step 5: Solve for x
    x = 331,045,570.11/20,598.50
  6. Step 6: Final answer
    x = 16,071.34

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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.