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Finding the Fourth Proportional to 28,056.58, 42,070.08 and 9,334.64

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Solution

The fourth proportional to 28,056.58, 42,070.08 and 9,334.64 is: 13,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.58 : 42,070.08 = 9,334.64 : x
  2. Step 2: Convert to fraction form
    28,056.58/42,070.08 = 9,334.64/x
  3. Step 3: Cross multiply
    28,056.58x = 42,070.08 × 9,334.64
  4. Step 4: Simplify right side
    28,056.58x = 392,709,051.57
  5. Step 5: Solve for x
    x = 392,709,051.57/28,056.58
  6. Step 6: Final answer
    x = 13,997.04

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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.