Home / 21,110.96-31,666.41-10,011.58

Finding the Fourth Proportional to 21,110.96, 31,666.41 and 10,011.58

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Solution

The fourth proportional to 21,110.96, 31,666.41 and 10,011.58 is: 15,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.96 : 31,666.41 = 10,011.58 : x
  2. Step 2: Convert to fraction form
    21,110.96/31,666.41 = 10,011.58/x
  3. Step 3: Cross multiply
    21,110.96x = 31,666.41 × 10,011.58
  4. Step 4: Simplify right side
    21,110.96x = 317,030,895.99
  5. Step 5: Solve for x
    x = 317,030,895.99/21,110.96
  6. Step 6: Final answer
    x = 15,017.36

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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.