Home / 28,007.52-38,648.64-16,071.84

Finding the Fourth Proportional to 28,007.52, 38,648.64 and 16,071.84

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Solution

The fourth proportional to 28,007.52, 38,648.64 and 16,071.84 is: 22,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.52 : 38,648.64 = 16,071.84 : x
  2. Step 2: Convert to fraction form
    28,007.52/38,648.64 = 16,071.84/x
  3. Step 3: Cross multiply
    28,007.52x = 38,648.64 × 16,071.84
  4. Step 4: Simplify right side
    28,007.52x = 621,154,758.30
  5. Step 5: Solve for x
    x = 621,154,758.30/28,007.52
  6. Step 6: Final answer
    x = 22,178.14

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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.