Home / 19,421.60-29,135.28-6,269.60

Finding the Fourth Proportional to 19,421.60, 29,135.28 and 6,269.60

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Solution

The fourth proportional to 19,421.60, 29,135.28 and 6,269.60 is: 9,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.60 : 29,135.28 = 6,269.60 : x
  2. Step 2: Convert to fraction form
    19,421.60/29,135.28 = 6,269.60/x
  3. Step 3: Cross multiply
    19,421.60x = 29,135.28 × 6,269.60
  4. Step 4: Simplify right side
    19,421.60x = 182,666,551.49
  5. Step 5: Solve for x
    x = 182,666,551.49/19,421.60
  6. Step 6: Final answer
    x = 9,405.33

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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.