Home / 15,579.07-23,368.60-12,342.31

Finding the Fourth Proportional to 15,579.07, 23,368.60 and 12,342.31

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Solution

The fourth proportional to 15,579.07, 23,368.60 and 12,342.31 is: 18,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.07 : 23,368.60 = 12,342.31 : x
  2. Step 2: Convert to fraction form
    15,579.07/23,368.60 = 12,342.31/x
  3. Step 3: Cross multiply
    15,579.07x = 23,368.60 × 12,342.31
  4. Step 4: Simplify right side
    15,579.07x = 288,422,416.19
  5. Step 5: Solve for x
    x = 288,422,416.19/15,579.07
  6. Step 6: Final answer
    x = 18,513.46

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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.