Home / 28,124.40-38,814.24-15,551.52

Finding the Fourth Proportional to 28,124.40, 38,814.24 and 15,551.52

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Solution

The fourth proportional to 28,124.40, 38,814.24 and 15,551.52 is: 21,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124.40 : 38,814.24 = 15,551.52 : x
  2. Step 2: Convert to fraction form
    28,124.40/38,814.24 = 15,551.52/x
  3. Step 3: Cross multiply
    28,124.40x = 38,814.24 × 15,551.52
  4. Step 4: Simplify right side
    28,124.40x = 603,620,429.64
  5. Step 5: Solve for x
    x = 603,620,429.64/28,124.40
  6. Step 6: Final answer
    x = 21,462.52

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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.