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Finding the Fourth Proportional to 20,301.59, 30,444.80 and 6,970.80

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Solution

The fourth proportional to 20,301.59, 30,444.80 and 6,970.80 is: 10,453.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.59 : 30,444.80 = 6,970.80 : x
  2. Step 2: Convert to fraction form
    20,301.59/30,444.80 = 6,970.80/x
  3. Step 3: Cross multiply
    20,301.59x = 30,444.80 × 6,970.80
  4. Step 4: Simplify right side
    20,301.59x = 212,224,424.76
  5. Step 5: Solve for x
    x = 212,224,424.76/20,301.59
  6. Step 6: Final answer
    x = 10,453.59

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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.