Home / 20,685.04-28,547.02-11,610.20

Finding the Fourth Proportional to 20,685.04, 28,547.02 and 11,610.20

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Solution

The fourth proportional to 20,685.04, 28,547.02 and 11,610.20 is: 16,023.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685.04 : 28,547.02 = 11,610.20 : x
  2. Step 2: Convert to fraction form
    20,685.04/28,547.02 = 11,610.20/x
  3. Step 3: Cross multiply
    20,685.04x = 28,547.02 × 11,610.20
  4. Step 4: Simplify right side
    20,685.04x = 331,436,611.60
  5. Step 5: Solve for x
    x = 331,436,611.60/20,685.04
  6. Step 6: Final answer
    x = 16,023.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.