Home / 25,139.57-34,693.03-13,809.54

Finding the Fourth Proportional to 25,139.57, 34,693.03 and 13,809.54

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Solution

The fourth proportional to 25,139.57, 34,693.03 and 13,809.54 is: 19,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,139.57 : 34,693.03 = 13,809.54 : x
  2. Step 2: Convert to fraction form
    25,139.57/34,693.03 = 13,809.54/x
  3. Step 3: Cross multiply
    25,139.57x = 34,693.03 × 13,809.54
  4. Step 4: Simplify right side
    25,139.57x = 479,094,785.51
  5. Step 5: Solve for x
    x = 479,094,785.51/25,139.57
  6. Step 6: Final answer
    x = 19,057.40

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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.