Home / 25,390.28-35,038.60-13,905.13

Finding the Fourth Proportional to 25,390.28, 35,038.60 and 13,905.13

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Solution

The fourth proportional to 25,390.28, 35,038.60 and 13,905.13 is: 19,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.28 : 35,038.60 = 13,905.13 : x
  2. Step 2: Convert to fraction form
    25,390.28/35,038.60 = 13,905.13/x
  3. Step 3: Cross multiply
    25,390.28x = 35,038.60 × 13,905.13
  4. Step 4: Simplify right side
    25,390.28x = 487,216,165.66
  5. Step 5: Solve for x
    x = 487,216,165.66/25,390.28
  6. Step 6: Final answer
    x = 19,189.09

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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.