Home / 21,010.04-28,991.22-12,056.36

Finding the Fourth Proportional to 21,010.04, 28,991.22 and 12,056.36

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Solution

The fourth proportional to 21,010.04, 28,991.22 and 12,056.36 is: 16,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.04 : 28,991.22 = 12,056.36 : x
  2. Step 2: Convert to fraction form
    21,010.04/28,991.22 = 12,056.36/x
  3. Step 3: Cross multiply
    21,010.04x = 28,991.22 × 12,056.36
  4. Step 4: Simplify right side
    21,010.04x = 349,528,585.16
  5. Step 5: Solve for x
    x = 349,528,585.16/21,010.04
  6. Step 6: Final answer
    x = 16,636.26

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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.