Home / 20,647.04-28,462.91-15,261.53

Finding the Fourth Proportional to 20,647.04, 28,462.91 and 15,261.53

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Solution

The fourth proportional to 20,647.04, 28,462.91 and 15,261.53 is: 21,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.04 : 28,462.91 = 15,261.53 : x
  2. Step 2: Convert to fraction form
    20,647.04/28,462.91 = 15,261.53/x
  3. Step 3: Cross multiply
    20,647.04x = 28,462.91 × 15,261.53
  4. Step 4: Simplify right side
    20,647.04x = 434,387,336.23
  5. Step 5: Solve for x
    x = 434,387,336.23/20,647.04
  6. Step 6: Final answer
    x = 21,038.73

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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.