Home / 20,810.07-28,725.84-14,130.27

Finding the Fourth Proportional to 20,810.07, 28,725.84 and 14,130.27

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Solution

The fourth proportional to 20,810.07, 28,725.84 and 14,130.27 is: 19,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.07 : 28,725.84 = 14,130.27 : x
  2. Step 2: Convert to fraction form
    20,810.07/28,725.84 = 14,130.27/x
  3. Step 3: Cross multiply
    20,810.07x = 28,725.84 × 14,130.27
  4. Step 4: Simplify right side
    20,810.07x = 405,903,875.18
  5. Step 5: Solve for x
    x = 405,903,875.18/20,810.07
  6. Step 6: Final answer
    x = 19,505.17

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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.