Home / 25,829.14-35,655.06-21,870.76

Finding the Fourth Proportional to 25,829.14, 35,655.06 and 21,870.76

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Solution

The fourth proportional to 25,829.14, 35,655.06 and 21,870.76 is: 30,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,829.14 : 35,655.06 = 21,870.76 : x
  2. Step 2: Convert to fraction form
    25,829.14/35,655.06 = 21,870.76/x
  3. Step 3: Cross multiply
    25,829.14x = 35,655.06 × 21,870.76
  4. Step 4: Simplify right side
    25,829.14x = 779,803,260.05
  5. Step 5: Solve for x
    x = 779,803,260.05/25,829.14
  6. Step 6: Final answer
    x = 30,190.83

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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.