Home / 30,529.49-45,788.01-19,281.42

Finding the Fourth Proportional to 30,529.49, 45,788.01 and 19,281.42

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Solution

The fourth proportional to 30,529.49, 45,788.01 and 19,281.42 is: 28,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,529.49 : 45,788.01 = 19,281.42 : x
  2. Step 2: Convert to fraction form
    30,529.49/45,788.01 = 19,281.42/x
  3. Step 3: Cross multiply
    30,529.49x = 45,788.01 × 19,281.42
  4. Step 4: Simplify right side
    30,529.49x = 882,857,851.77
  5. Step 5: Solve for x
    x = 882,857,851.77/30,529.49
  6. Step 6: Final answer
    x = 28,918.20

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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.