Home / 20,904.84-28,848.90-11,473.20

Finding the Fourth Proportional to 20,904.84, 28,848.90 and 11,473.20

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Solution

The fourth proportional to 20,904.84, 28,848.90 and 11,473.20 is: 15,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.84 : 28,848.90 = 11,473.20 : x
  2. Step 2: Convert to fraction form
    20,904.84/28,848.90 = 11,473.20/x
  3. Step 3: Cross multiply
    20,904.84x = 28,848.90 × 11,473.20
  4. Step 4: Simplify right side
    20,904.84x = 330,989,199.48
  5. Step 5: Solve for x
    x = 330,989,199.48/20,904.84
  6. Step 6: Final answer
    x = 15,833.14

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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.