Home / 20,842,715.88-28,763,015.67-11,550,439.24

Finding the Fourth Proportional to 20,842,715.88, 28,763,015.67 and 11,550,439.24

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Solution

The fourth proportional to 20,842,715.88, 28,763,015.67 and 11,550,439.24 is: 15,939,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842,715.88 : 28,763,015.67 = 11,550,439.24 : x
  2. Step 2: Convert to fraction form
    20,842,715.88/28,763,015.67 = 11,550,439.24/x
  3. Step 3: Cross multiply
    20,842,715.88x = 28,763,015.67 × 11,550,439.24
  4. Step 4: Simplify right side
    20,842,715.88x = 332,225,464,783,595.38
  5. Step 5: Solve for x
    x = 332,225,464,783,595.38/20,842,715.88
  6. Step 6: Final answer
    x = 15,939,643.70

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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.