Home / 22,570.14-31,136.96-13,612.67

Finding the Fourth Proportional to 22,570.14, 31,136.96 and 13,612.67

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Solution

The fourth proportional to 22,570.14, 31,136.96 and 13,612.67 is: 18,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,570.14 : 31,136.96 = 13,612.67 : x
  2. Step 2: Convert to fraction form
    22,570.14/31,136.96 = 13,612.67/x
  3. Step 3: Cross multiply
    22,570.14x = 31,136.96 × 13,612.67
  4. Step 4: Simplify right side
    22,570.14x = 423,857,039.63
  5. Step 5: Solve for x
    x = 423,857,039.63/22,570.14
  6. Step 6: Final answer
    x = 18,779.55

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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.