Home / 19,688.28-29,484.48-13,020.63

Finding the Fourth Proportional to 19,688.28, 29,484.48 and 13,020.63

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Solution

The fourth proportional to 19,688.28, 29,484.48 and 13,020.63 is: 19,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.28 : 29,484.48 = 13,020.63 : x
  2. Step 2: Convert to fraction form
    19,688.28/29,484.48 = 13,020.63/x
  3. Step 3: Cross multiply
    19,688.28x = 29,484.48 × 13,020.63
  4. Step 4: Simplify right side
    19,688.28x = 383,906,504.82
  5. Step 5: Solve for x
    x = 383,906,504.82/19,688.28
  6. Step 6: Final answer
    x = 19,499.24

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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.