Home / 20,239.04-27,886.56-13,603.52

Finding the Fourth Proportional to 20,239.04, 27,886.56 and 13,603.52

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Solution

The fourth proportional to 20,239.04, 27,886.56 and 13,603.52 is: 18,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.04 : 27,886.56 = 13,603.52 : x
  2. Step 2: Convert to fraction form
    20,239.04/27,886.56 = 13,603.52/x
  3. Step 3: Cross multiply
    20,239.04x = 27,886.56 × 13,603.52
  4. Step 4: Simplify right side
    20,239.04x = 379,355,376.69
  5. Step 5: Solve for x
    x = 379,355,376.69/20,239.04
  6. Step 6: Final answer
    x = 18,743.74

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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.