Home / 15,426.40-23,139.60-14,389.60

Finding the Fourth Proportional to 15,426.40, 23,139.60 and 14,389.60

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Solution

The fourth proportional to 15,426.40, 23,139.60 and 14,389.60 is: 21,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.40 : 23,139.60 = 14,389.60 : x
  2. Step 2: Convert to fraction form
    15,426.40/23,139.60 = 14,389.60/x
  3. Step 3: Cross multiply
    15,426.40x = 23,139.60 × 14,389.60
  4. Step 4: Simplify right side
    15,426.40x = 332,969,588.16
  5. Step 5: Solve for x
    x = 332,969,588.16/15,426.40
  6. Step 6: Final answer
    x = 21,584.40

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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.