Home / 15,585.89-23,378.90-3,899.07

Finding the Fourth Proportional to 15,585.89, 23,378.90 and 3,899.07

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Solution

The fourth proportional to 15,585.89, 23,378.90 and 3,899.07 is: 5,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.89 : 23,378.90 = 3,899.07 : x
  2. Step 2: Convert to fraction form
    15,585.89/23,378.90 = 3,899.07/x
  3. Step 3: Cross multiply
    15,585.89x = 23,378.90 × 3,899.07
  4. Step 4: Simplify right side
    15,585.89x = 91,155,948.13
  5. Step 5: Solve for x
    x = 91,155,948.13/15,585.89
  6. Step 6: Final answer
    x = 5,848.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.