Home / 30,307.04-41,807.44-20,612.96

Finding the Fourth Proportional to 30,307.04, 41,807.44 and 20,612.96

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Solution

The fourth proportional to 30,307.04, 41,807.44 and 20,612.96 is: 28,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307.04 : 41,807.44 = 20,612.96 : x
  2. Step 2: Convert to fraction form
    30,307.04/41,807.44 = 20,612.96/x
  3. Step 3: Cross multiply
    30,307.04x = 41,807.44 × 20,612.96
  4. Step 4: Simplify right side
    30,307.04x = 861,775,088.42
  5. Step 5: Solve for x
    x = 861,775,088.42/30,307.04
  6. Step 6: Final answer
    x = 28,434.82

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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.