Home / 28,059.29-38,720.81-15,483.77

Finding the Fourth Proportional to 28,059.29, 38,720.81 and 15,483.77

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Solution

The fourth proportional to 28,059.29, 38,720.81 and 15,483.77 is: 21,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,059.29 : 38,720.81 = 15,483.77 : x
  2. Step 2: Convert to fraction form
    28,059.29/38,720.81 = 15,483.77/x
  3. Step 3: Cross multiply
    28,059.29x = 38,720.81 × 15,483.77
  4. Step 4: Simplify right side
    28,059.29x = 599,544,038.83
  5. Step 5: Solve for x
    x = 599,544,038.83/28,059.29
  6. Step 6: Final answer
    x = 21,367.04

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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.