Home / 21,455.64-32,166.18-9,152.28

Finding the Fourth Proportional to 21,455.64, 32,166.18 and 9,152.28

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Solution

The fourth proportional to 21,455.64, 32,166.18 and 9,152.28 is: 13,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.64 : 32,166.18 = 9,152.28 : x
  2. Step 2: Convert to fraction form
    21,455.64/32,166.18 = 9,152.28/x
  3. Step 3: Cross multiply
    21,455.64x = 32,166.18 × 9,152.28
  4. Step 4: Simplify right side
    21,455.64x = 294,393,885.89
  5. Step 5: Solve for x
    x = 294,393,885.89/21,455.64
  6. Step 6: Final answer
    x = 13,721.05

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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.