Home / 27,928.02-38,543.01-15,355.14

Finding the Fourth Proportional to 27,928.02, 38,543.01 and 15,355.14

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Solution

The fourth proportional to 27,928.02, 38,543.01 and 15,355.14 is: 21,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.02 : 38,543.01 = 15,355.14 : x
  2. Step 2: Convert to fraction form
    27,928.02/38,543.01 = 15,355.14/x
  3. Step 3: Cross multiply
    27,928.02x = 38,543.01 × 15,355.14
  4. Step 4: Simplify right side
    27,928.02x = 591,833,314.57
  5. Step 5: Solve for x
    x = 591,833,314.57/27,928.02
  6. Step 6: Final answer
    x = 21,191.38

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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.