Home / 27,903.52-38,507.12-15,328.56

Finding the Fourth Proportional to 27,903.52, 38,507.12 and 15,328.56

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Solution

The fourth proportional to 27,903.52, 38,507.12 and 15,328.56 is: 21,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,903.52 : 38,507.12 = 15,328.56 : x
  2. Step 2: Convert to fraction form
    27,903.52/38,507.12 = 15,328.56/x
  3. Step 3: Cross multiply
    27,903.52x = 38,507.12 × 15,328.56
  4. Step 4: Simplify right side
    27,903.52x = 590,258,699.35
  5. Step 5: Solve for x
    x = 590,258,699.35/27,903.52
  6. Step 6: Final answer
    x = 21,153.56

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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.