Home / 30,030.02-41,451.28-21,079.72

Finding the Fourth Proportional to 30,030.02, 41,451.28 and 21,079.72

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Solution

The fourth proportional to 30,030.02, 41,451.28 and 21,079.72 is: 29,096.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,030.02 : 41,451.28 = 21,079.72 : x
  2. Step 2: Convert to fraction form
    30,030.02/41,451.28 = 21,079.72/x
  3. Step 3: Cross multiply
    30,030.02x = 41,451.28 × 21,079.72
  4. Step 4: Simplify right side
    30,030.02x = 873,781,476.42
  5. Step 5: Solve for x
    x = 873,781,476.42/30,030.02
  6. Step 6: Final answer
    x = 29,096.93

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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.