Home / 28,001.60-42,002.40-27,051.20

Finding the Fourth Proportional to 28,001.60, 42,002.40 and 27,051.20

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Solution

The fourth proportional to 28,001.60, 42,002.40 and 27,051.20 is: 40,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.60 : 42,002.40 = 27,051.20 : x
  2. Step 2: Convert to fraction form
    28,001.60/42,002.40 = 27,051.20/x
  3. Step 3: Cross multiply
    28,001.60x = 42,002.40 × 27,051.20
  4. Step 4: Simplify right side
    28,001.60x = 1,136,215,322.88
  5. Step 5: Solve for x
    x = 1,136,215,322.88/28,001.60
  6. Step 6: Final answer
    x = 40,576.80

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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.