Home / 20,973.58-28,941.80-12,358.42

Finding the Fourth Proportional to 20,973.58, 28,941.80 and 12,358.42

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Solution

The fourth proportional to 20,973.58, 28,941.80 and 12,358.42 is: 17,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.58 : 28,941.80 = 12,358.42 : x
  2. Step 2: Convert to fraction form
    20,973.58/28,941.80 = 12,358.42/x
  3. Step 3: Cross multiply
    20,973.58x = 28,941.80 × 12,358.42
  4. Step 4: Simplify right side
    20,973.58x = 357,674,919.96
  5. Step 5: Solve for x
    x = 357,674,919.96/20,973.58
  6. Step 6: Final answer
    x = 17,053.59

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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.