Home / 23,487.71-32,394.21-20,649.05

Finding the Fourth Proportional to 23,487.71, 32,394.21 and 20,649.05

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Solution

The fourth proportional to 23,487.71, 32,394.21 and 20,649.05 is: 28,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,487.71 : 32,394.21 = 20,649.05 : x
  2. Step 2: Convert to fraction form
    23,487.71/32,394.21 = 20,649.05/x
  3. Step 3: Cross multiply
    23,487.71x = 32,394.21 × 20,649.05
  4. Step 4: Simplify right side
    23,487.71x = 668,909,500.03
  5. Step 5: Solve for x
    x = 668,909,500.03/23,487.71
  6. Step 6: Final answer
    x = 28,479.13

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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.