Home / 28,436.81-39,242.93-16,334.06

Finding the Fourth Proportional to 28,436.81, 39,242.93 and 16,334.06

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Solution

The fourth proportional to 28,436.81, 39,242.93 and 16,334.06 is: 22,541.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.81 : 39,242.93 = 16,334.06 : x
  2. Step 2: Convert to fraction form
    28,436.81/39,242.93 = 16,334.06/x
  3. Step 3: Cross multiply
    28,436.81x = 39,242.93 × 16,334.06
  4. Step 4: Simplify right side
    28,436.81x = 640,996,095.31
  5. Step 5: Solve for x
    x = 640,996,095.31/28,436.81
  6. Step 6: Final answer
    x = 22,541.07

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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.