Home / 15,435.06-21,341.79-14,725.50

Finding the Fourth Proportional to 15,435.06, 21,341.79 and 14,725.50

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Solution

The fourth proportional to 15,435.06, 21,341.79 and 14,725.50 is: 20,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.06 : 21,341.79 = 14,725.50 : x
  2. Step 2: Convert to fraction form
    15,435.06/21,341.79 = 14,725.50/x
  3. Step 3: Cross multiply
    15,435.06x = 21,341.79 × 14,725.50
  4. Step 4: Simplify right side
    15,435.06x = 314,268,528.65
  5. Step 5: Solve for x
    x = 314,268,528.65/15,435.06
  6. Step 6: Final answer
    x = 20,360.69

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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.