Home / 23,289.61-32,140.80-13,729.81

Finding the Fourth Proportional to 23,289.61, 32,140.80 and 13,729.81

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Solution

The fourth proportional to 23,289.61, 32,140.80 and 13,729.81 is: 18,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,289.61 : 32,140.80 = 13,729.81 : x
  2. Step 2: Convert to fraction form
    23,289.61/32,140.80 = 13,729.81/x
  3. Step 3: Cross multiply
    23,289.61x = 32,140.80 × 13,729.81
  4. Step 4: Simplify right side
    23,289.61x = 441,287,077.25
  5. Step 5: Solve for x
    x = 441,287,077.25/23,289.61
  6. Step 6: Final answer
    x = 18,947.81

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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.