Home / 21,428.01-32,142.02-7,392.06

Finding the Fourth Proportional to 21,428.01, 32,142.02 and 7,392.06

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Solution

The fourth proportional to 21,428.01, 32,142.02 and 7,392.06 is: 11,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428.01 : 32,142.02 = 7,392.06 : x
  2. Step 2: Convert to fraction form
    21,428.01/32,142.02 = 7,392.06/x
  3. Step 3: Cross multiply
    21,428.01x = 32,142.02 × 7,392.06
  4. Step 4: Simplify right side
    21,428.01x = 237,595,740.36
  5. Step 5: Solve for x
    x = 237,595,740.36/21,428.01
  6. Step 6: Final answer
    x = 11,088.09

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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.