Home / 15,535.34-21,435.27-13,027.58

Finding the Fourth Proportional to 15,535.34, 21,435.27 and 13,027.58

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Solution

The fourth proportional to 15,535.34, 21,435.27 and 13,027.58 is: 17,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.34 : 21,435.27 = 13,027.58 : x
  2. Step 2: Convert to fraction form
    15,535.34/21,435.27 = 13,027.58/x
  3. Step 3: Cross multiply
    15,535.34x = 21,435.27 × 13,027.58
  4. Step 4: Simplify right side
    15,535.34x = 279,249,694.75
  5. Step 5: Solve for x
    x = 279,249,694.75/15,535.34
  6. Step 6: Final answer
    x = 17,975.13

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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.