Home / 21,640.34-32,464.45-9,953.25

Finding the Fourth Proportional to 21,640.34, 32,464.45 and 9,953.25

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Solution

The fourth proportional to 21,640.34, 32,464.45 and 9,953.25 is: 14,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.34 : 32,464.45 = 9,953.25 : x
  2. Step 2: Convert to fraction form
    21,640.34/32,464.45 = 9,953.25/x
  3. Step 3: Cross multiply
    21,640.34x = 32,464.45 × 9,953.25
  4. Step 4: Simplify right side
    21,640.34x = 323,126,799.40
  5. Step 5: Solve for x
    x = 323,126,799.40/21,640.34
  6. Step 6: Final answer
    x = 14,931.69

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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.