Home / 25,428.16-38,142.23-9,845.79

Finding the Fourth Proportional to 25,428.16, 38,142.23 and 9,845.79

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Solution

The fourth proportional to 25,428.16, 38,142.23 and 9,845.79 is: 14,768.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.16 : 38,142.23 = 9,845.79 : x
  2. Step 2: Convert to fraction form
    25,428.16/38,142.23 = 9,845.79/x
  3. Step 3: Cross multiply
    25,428.16x = 38,142.23 × 9,845.79
  4. Step 4: Simplify right side
    25,428.16x = 375,540,386.71
  5. Step 5: Solve for x
    x = 375,540,386.71/25,428.16
  6. Step 6: Final answer
    x = 14,768.68

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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.