Home / 25,631.91-35,374.49-15,558.05

Finding the Fourth Proportional to 25,631.91, 35,374.49 and 15,558.05

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Solution

The fourth proportional to 25,631.91, 35,374.49 and 15,558.05 is: 21,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.91 : 35,374.49 = 15,558.05 : x
  2. Step 2: Convert to fraction form
    25,631.91/35,374.49 = 15,558.05/x
  3. Step 3: Cross multiply
    25,631.91x = 35,374.49 × 15,558.05
  4. Step 4: Simplify right side
    25,631.91x = 550,357,829.48
  5. Step 5: Solve for x
    x = 550,357,829.48/25,631.91
  6. Step 6: Final answer
    x = 21,471.59

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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.