Home / 25,720.79-35,496.45-14,391.36

Finding the Fourth Proportional to 25,720.79, 35,496.45 and 14,391.36

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Solution

The fourth proportional to 25,720.79, 35,496.45 and 14,391.36 is: 19,861.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720.79 : 35,496.45 = 14,391.36 : x
  2. Step 2: Convert to fraction form
    25,720.79/35,496.45 = 14,391.36/x
  3. Step 3: Cross multiply
    25,720.79x = 35,496.45 × 14,391.36
  4. Step 4: Simplify right side
    25,720.79x = 510,842,190.67
  5. Step 5: Solve for x
    x = 510,842,190.67/25,720.79
  6. Step 6: Final answer
    x = 19,861.07

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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.