Home / 28,150.25-38,848.56-15,575

Finding the Fourth Proportional to 28,150.25, 38,848.56 and 15,575

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Solution

The fourth proportional to 28,150.25, 38,848.56 and 15,575 is: 21,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.25 : 38,848.56 = 15,575 : x
  2. Step 2: Convert to fraction form
    28,150.25/38,848.56 = 15,575/x
  3. Step 3: Cross multiply
    28,150.25x = 38,848.56 × 15,575
  4. Step 4: Simplify right side
    28,150.25x = 605,066,322
  5. Step 5: Solve for x
    x = 605,066,322/28,150.25
  6. Step 6: Final answer
    x = 21,494.17

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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.