Home / 25,754.36-38,807.04-21,176.92

Finding the Fourth Proportional to 25,754.36, 38,807.04 and 21,176.92

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Solution

The fourth proportional to 25,754.36, 38,807.04 and 21,176.92 is: 31,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,754.36 : 38,807.04 = 21,176.92 : x
  2. Step 2: Convert to fraction form
    25,754.36/38,807.04 = 21,176.92/x
  3. Step 3: Cross multiply
    25,754.36x = 38,807.04 × 21,176.92
  4. Step 4: Simplify right side
    25,754.36x = 821,813,581.52
  5. Step 5: Solve for x
    x = 821,813,581.52/25,754.36
  6. Step 6: Final answer
    x = 31,909.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.