Home / 30,358.16-45,554.52-19,974.80

Finding the Fourth Proportional to 30,358.16, 45,554.52 and 19,974.80

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Solution

The fourth proportional to 30,358.16, 45,554.52 and 19,974.80 is: 29,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.16 : 45,554.52 = 19,974.80 : x
  2. Step 2: Convert to fraction form
    30,358.16/45,554.52 = 19,974.80/x
  3. Step 3: Cross multiply
    30,358.16x = 45,554.52 × 19,974.80
  4. Step 4: Simplify right side
    30,358.16x = 909,942,426.10
  5. Step 5: Solve for x
    x = 909,942,426.10/30,358.16
  6. Step 6: Final answer
    x = 29,973.57

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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.