Home / 15,423.60-23,117.31-13,570.86

Finding the Fourth Proportional to 15,423.60, 23,117.31 and 13,570.86

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Solution

The fourth proportional to 15,423.60, 23,117.31 and 13,570.86 is: 20,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.60 : 23,117.31 = 13,570.86 : x
  2. Step 2: Convert to fraction form
    15,423.60/23,117.31 = 13,570.86/x
  3. Step 3: Cross multiply
    15,423.60x = 23,117.31 × 13,570.86
  4. Step 4: Simplify right side
    15,423.60x = 313,721,777.59
  5. Step 5: Solve for x
    x = 313,721,777.59/15,423.60
  6. Step 6: Final answer
    x = 20,340.37

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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.