Home / 30,053.20-41,507.46-20,476.47

Finding the Fourth Proportional to 30,053.20, 41,507.46 and 20,476.47

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Solution

The fourth proportional to 30,053.20, 41,507.46 and 20,476.47 is: 28,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,053.20 : 41,507.46 = 20,476.47 : x
  2. Step 2: Convert to fraction form
    30,053.20/41,507.46 = 20,476.47/x
  3. Step 3: Cross multiply
    30,053.20x = 41,507.46 × 20,476.47
  4. Step 4: Simplify right side
    30,053.20x = 849,926,259.47
  5. Step 5: Solve for x
    x = 849,926,259.47/30,053.20
  6. Step 6: Final answer
    x = 28,280.72

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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.