Home / 30,729.81-42,404.72-17,298.39

Finding the Fourth Proportional to 30,729.81, 42,404.72 and 17,298.39

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Solution

The fourth proportional to 30,729.81, 42,404.72 and 17,298.39 is: 23,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,729.81 : 42,404.72 = 17,298.39 : x
  2. Step 2: Convert to fraction form
    30,729.81/42,404.72 = 17,298.39/x
  3. Step 3: Cross multiply
    30,729.81x = 42,404.72 × 17,298.39
  4. Step 4: Simplify right side
    30,729.81x = 733,533,297.91
  5. Step 5: Solve for x
    x = 733,533,297.91/30,729.81
  6. Step 6: Final answer
    x = 23,870.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.