Home / 30,921.84-42,643.98-26,151.78

Finding the Fourth Proportional to 30,921.84, 42,643.98 and 26,151.78

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Solution

The fourth proportional to 30,921.84, 42,643.98 and 26,151.78 is: 36,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921.84 : 42,643.98 = 26,151.78 : x
  2. Step 2: Convert to fraction form
    30,921.84/42,643.98 = 26,151.78/x
  3. Step 3: Cross multiply
    30,921.84x = 42,643.98 × 26,151.78
  4. Step 4: Simplify right side
    30,921.84x = 1,115,215,983.28
  5. Step 5: Solve for x
    x = 1,115,215,983.28/30,921.84
  6. Step 6: Final answer
    x = 36,065.64

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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.