Home / 20,875.46-28,812.48-19,194.21

Finding the Fourth Proportional to 20,875.46, 28,812.48 and 19,194.21

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Solution

The fourth proportional to 20,875.46, 28,812.48 and 19,194.21 is: 26,492.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.46 : 28,812.48 = 19,194.21 : x
  2. Step 2: Convert to fraction form
    20,875.46/28,812.48 = 19,194.21/x
  3. Step 3: Cross multiply
    20,875.46x = 28,812.48 × 19,194.21
  4. Step 4: Simplify right side
    20,875.46x = 553,032,791.74
  5. Step 5: Solve for x
    x = 553,032,791.74/20,875.46
  6. Step 6: Final answer
    x = 26,492.01

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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.