Home / 19,312.74-28,941.57-11,416.86

Finding the Fourth Proportional to 19,312.74, 28,941.57 and 11,416.86

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Solution

The fourth proportional to 19,312.74, 28,941.57 and 11,416.86 is: 17,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.74 : 28,941.57 = 11,416.86 : x
  2. Step 2: Convert to fraction form
    19,312.74/28,941.57 = 11,416.86/x
  3. Step 3: Cross multiply
    19,312.74x = 28,941.57 × 11,416.86
  4. Step 4: Simplify right side
    19,312.74x = 330,421,852.87
  5. Step 5: Solve for x
    x = 330,421,852.87/19,312.74
  6. Step 6: Final answer
    x = 17,109.01

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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.