Home / 28,429.32-39,232.98-15,852.72

Finding the Fourth Proportional to 28,429.32, 39,232.98 and 15,852.72

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Solution

The fourth proportional to 28,429.32, 39,232.98 and 15,852.72 is: 21,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.32 : 39,232.98 = 15,852.72 : x
  2. Step 2: Convert to fraction form
    28,429.32/39,232.98 = 15,852.72/x
  3. Step 3: Cross multiply
    28,429.32x = 39,232.98 × 15,852.72
  4. Step 4: Simplify right side
    28,429.32x = 621,949,446.71
  5. Step 5: Solve for x
    x = 621,949,446.71/28,429.32
  6. Step 6: Final answer
    x = 21,877.04

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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.