Home / 25,369.13-35,009.73-15,812.88

Finding the Fourth Proportional to 25,369.13, 35,009.73 and 15,812.88

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Solution

The fourth proportional to 25,369.13, 35,009.73 and 15,812.88 is: 21,821.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,369.13 : 35,009.73 = 15,812.88 : x
  2. Step 2: Convert to fraction form
    25,369.13/35,009.73 = 15,812.88/x
  3. Step 3: Cross multiply
    25,369.13x = 35,009.73 × 15,812.88
  4. Step 4: Simplify right side
    25,369.13x = 553,604,659.32
  5. Step 5: Solve for x
    x = 553,604,659.32/25,369.13
  6. Step 6: Final answer
    x = 21,821.98

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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.