Home / 27,888.04-38,485.28-15,140.96

Finding the Fourth Proportional to 27,888.04, 38,485.28 and 15,140.96

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Solution

The fourth proportional to 27,888.04, 38,485.28 and 15,140.96 is: 20,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.04 : 38,485.28 = 15,140.96 : x
  2. Step 2: Convert to fraction form
    27,888.04/38,485.28 = 15,140.96/x
  3. Step 3: Cross multiply
    27,888.04x = 38,485.28 × 15,140.96
  4. Step 4: Simplify right side
    27,888.04x = 582,704,177.74
  5. Step 5: Solve for x
    x = 582,704,177.74/27,888.04
  6. Step 6: Final answer
    x = 20,894.41

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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.