Home / 19,641.20-29,461.80-13,823.76

Finding the Fourth Proportional to 19,641.20, 29,461.80 and 13,823.76

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Solution

The fourth proportional to 19,641.20, 29,461.80 and 13,823.76 is: 20,735.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.20 : 29,461.80 = 13,823.76 : x
  2. Step 2: Convert to fraction form
    19,641.20/29,461.80 = 13,823.76/x
  3. Step 3: Cross multiply
    19,641.20x = 29,461.80 × 13,823.76
  4. Step 4: Simplify right side
    19,641.20x = 407,272,852.37
  5. Step 5: Solve for x
    x = 407,272,852.37/19,641.20
  6. Step 6: Final answer
    x = 20,735.64

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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.