Home / 19,637.18-29,455.78-13,819.76

Finding the Fourth Proportional to 19,637.18, 29,455.78 and 13,819.76

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Solution

The fourth proportional to 19,637.18, 29,455.78 and 13,819.76 is: 20,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,637.18 : 29,455.78 = 13,819.76 : x
  2. Step 2: Convert to fraction form
    19,637.18/29,455.78 = 13,819.76/x
  3. Step 3: Cross multiply
    19,637.18x = 29,455.78 × 13,819.76
  4. Step 4: Simplify right side
    19,637.18x = 407,071,810.21
  5. Step 5: Solve for x
    x = 407,071,810.21/19,637.18
  6. Step 6: Final answer
    x = 20,729.65

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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.