Home / 28,963.32-39,970.70-22,664.76

Finding the Fourth Proportional to 28,963.32, 39,970.70 and 22,664.76

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Solution

The fourth proportional to 28,963.32, 39,970.70 and 22,664.76 is: 31,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.32 : 39,970.70 = 22,664.76 : x
  2. Step 2: Convert to fraction form
    28,963.32/39,970.70 = 22,664.76/x
  3. Step 3: Cross multiply
    28,963.32x = 39,970.70 × 22,664.76
  4. Step 4: Simplify right side
    28,963.32x = 905,926,322.53
  5. Step 5: Solve for x
    x = 905,926,322.53/28,963.32
  6. Step 6: Final answer
    x = 31,278.40

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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.