Home / 27,705.08-38,223.53-15,765.43

Finding the Fourth Proportional to 27,705.08, 38,223.53 and 15,765.43

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Solution

The fourth proportional to 27,705.08, 38,223.53 and 15,765.43 is: 21,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.08 : 38,223.53 = 15,765.43 : x
  2. Step 2: Convert to fraction form
    27,705.08/38,223.53 = 15,765.43/x
  3. Step 3: Cross multiply
    27,705.08x = 38,223.53 × 15,765.43
  4. Step 4: Simplify right side
    27,705.08x = 602,610,307.74
  5. Step 5: Solve for x
    x = 602,610,307.74/27,705.08
  6. Step 6: Final answer
    x = 21,750.90

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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.