Home / 21,720.04-32,603.09-19,237.35

Finding the Fourth Proportional to 21,720.04, 32,603.09 and 19,237.35

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Solution

The fourth proportional to 21,720.04, 32,603.09 and 19,237.35 is: 28,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.04 : 32,603.09 = 19,237.35 : x
  2. Step 2: Convert to fraction form
    21,720.04/32,603.09 = 19,237.35/x
  3. Step 3: Cross multiply
    21,720.04x = 32,603.09 × 19,237.35
  4. Step 4: Simplify right side
    21,720.04x = 627,196,973.01
  5. Step 5: Solve for x
    x = 627,196,973.01/21,720.04
  6. Step 6: Final answer
    x = 28,876.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.