Home / 25,285.86-34,883.19-15,208.38

Finding the Fourth Proportional to 25,285.86, 34,883.19 and 15,208.38

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Solution

The fourth proportional to 25,285.86, 34,883.19 and 15,208.38 is: 20,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,285.86 : 34,883.19 = 15,208.38 : x
  2. Step 2: Convert to fraction form
    25,285.86/34,883.19 = 15,208.38/x
  3. Step 3: Cross multiply
    25,285.86x = 34,883.19 × 15,208.38
  4. Step 4: Simplify right side
    25,285.86x = 530,516,809.13
  5. Step 5: Solve for x
    x = 530,516,809.13/25,285.86
  6. Step 6: Final answer
    x = 20,980.77

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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.