Home / 28,125.52-38,814-15,551.08

Finding the Fourth Proportional to 28,125.52, 38,814 and 15,551.08

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Solution

The fourth proportional to 28,125.52, 38,814 and 15,551.08 is: 21,460.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.52 : 38,814 = 15,551.08 : x
  2. Step 2: Convert to fraction form
    28,125.52/38,814 = 15,551.08/x
  3. Step 3: Cross multiply
    28,125.52x = 38,814 × 15,551.08
  4. Step 4: Simplify right side
    28,125.52x = 603,599,619.12
  5. Step 5: Solve for x
    x = 603,599,619.12/28,125.52
  6. Step 6: Final answer
    x = 21,460.92

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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.