Home / 26,313.93-39,479.40-15,782.31

Finding the Fourth Proportional to 26,313.93, 39,479.40 and 15,782.31

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Solution

The fourth proportional to 26,313.93, 39,479.40 and 15,782.31 is: 23,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,313.93 : 39,479.40 = 15,782.31 : x
  2. Step 2: Convert to fraction form
    26,313.93/39,479.40 = 15,782.31/x
  3. Step 3: Cross multiply
    26,313.93x = 39,479.40 × 15,782.31
  4. Step 4: Simplify right side
    26,313.93x = 623,076,129.41
  5. Step 5: Solve for x
    x = 623,076,129.41/26,313.93
  6. Step 6: Final answer
    x = 23,678.57

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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.