Home / 20,598.18-28,410.45-13,045.74

Finding the Fourth Proportional to 20,598.18, 28,410.45 and 13,045.74

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Solution

The fourth proportional to 20,598.18, 28,410.45 and 13,045.74 is: 17,993.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.18 : 28,410.45 = 13,045.74 : x
  2. Step 2: Convert to fraction form
    20,598.18/28,410.45 = 13,045.74/x
  3. Step 3: Cross multiply
    20,598.18x = 28,410.45 × 13,045.74
  4. Step 4: Simplify right side
    20,598.18x = 370,635,201.93
  5. Step 5: Solve for x
    x = 370,635,201.93/20,598.18
  6. Step 6: Final answer
    x = 17,993.59

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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.