Home / 25,138.86-34,693.48-15,580.62

Finding the Fourth Proportional to 25,138.86, 34,693.48 and 15,580.62

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Solution

The fourth proportional to 25,138.86, 34,693.48 and 15,580.62 is: 21,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.86 : 34,693.48 = 15,580.62 : x
  2. Step 2: Convert to fraction form
    25,138.86/34,693.48 = 15,580.62/x
  3. Step 3: Cross multiply
    25,138.86x = 34,693.48 × 15,580.62
  4. Step 4: Simplify right side
    25,138.86x = 540,545,947.83
  5. Step 5: Solve for x
    x = 540,545,947.83/25,138.86
  6. Step 6: Final answer
    x = 21,502.41

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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.