Home / 19,561.47-29,342.35-4,770.36

Finding the Fourth Proportional to 19,561.47, 29,342.35 and 4,770.36

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Solution

The fourth proportional to 19,561.47, 29,342.35 and 4,770.36 is: 7,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.47 : 29,342.35 = 4,770.36 : x
  2. Step 2: Convert to fraction form
    19,561.47/29,342.35 = 4,770.36/x
  3. Step 3: Cross multiply
    19,561.47x = 29,342.35 × 4,770.36
  4. Step 4: Simplify right side
    19,561.47x = 139,973,578.71
  5. Step 5: Solve for x
    x = 139,973,578.71/19,561.47
  6. Step 6: Final answer
    x = 7,155.58

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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.