Home / 25,639.40-38,430.30-13,154.60

Finding the Fourth Proportional to 25,639.40, 38,430.30 and 13,154.60

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Solution

The fourth proportional to 25,639.40, 38,430.30 and 13,154.60 is: 19,717.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,639.40 : 38,430.30 = 13,154.60 : x
  2. Step 2: Convert to fraction form
    25,639.40/38,430.30 = 13,154.60/x
  3. Step 3: Cross multiply
    25,639.40x = 38,430.30 × 13,154.60
  4. Step 4: Simplify right side
    25,639.40x = 505,535,224.38
  5. Step 5: Solve for x
    x = 505,535,224.38/25,639.40
  6. Step 6: Final answer
    x = 19,717.12

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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.