Home / 30,637.14-45,873.09-21,257.34

Finding the Fourth Proportional to 30,637.14, 45,873.09 and 21,257.34

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Solution

The fourth proportional to 30,637.14, 45,873.09 and 21,257.34 is: 31,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,637.14 : 45,873.09 = 21,257.34 : x
  2. Step 2: Convert to fraction form
    30,637.14/45,873.09 = 21,257.34/x
  3. Step 3: Cross multiply
    30,637.14x = 45,873.09 × 21,257.34
  4. Step 4: Simplify right side
    30,637.14x = 975,139,870.98
  5. Step 5: Solve for x
    x = 975,139,870.98/30,637.14
  6. Step 6: Final answer
    x = 31,828.68

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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.