Home / 20,030.39-30,043.29-5,240.74

Finding the Fourth Proportional to 20,030.39, 30,043.29 and 5,240.74

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Solution

The fourth proportional to 20,030.39, 30,043.29 and 5,240.74 is: 7,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.39 : 30,043.29 = 5,240.74 : x
  2. Step 2: Convert to fraction form
    20,030.39/30,043.29 = 5,240.74/x
  3. Step 3: Cross multiply
    20,030.39x = 30,043.29 × 5,240.74
  4. Step 4: Simplify right side
    20,030.39x = 157,448,921.42
  5. Step 5: Solve for x
    x = 157,448,921.42/20,030.39
  6. Step 6: Final answer
    x = 7,860.50

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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.