Home / 21,436.48-32,154.72-11,580.40

Finding the Fourth Proportional to 21,436.48, 32,154.72 and 11,580.40

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Solution

The fourth proportional to 21,436.48, 32,154.72 and 11,580.40 is: 17,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.48 : 32,154.72 = 11,580.40 : x
  2. Step 2: Convert to fraction form
    21,436.48/32,154.72 = 11,580.40/x
  3. Step 3: Cross multiply
    21,436.48x = 32,154.72 × 11,580.40
  4. Step 4: Simplify right side
    21,436.48x = 372,364,519.49
  5. Step 5: Solve for x
    x = 372,364,519.49/21,436.48
  6. Step 6: Final answer
    x = 17,370.60

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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.