Home / 30,645.83-42,280.22-20,041.52

Finding the Fourth Proportional to 30,645.83, 42,280.22 and 20,041.52

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Solution

The fourth proportional to 30,645.83, 42,280.22 and 20,041.52 is: 27,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.83 : 42,280.22 = 20,041.52 : x
  2. Step 2: Convert to fraction form
    30,645.83/42,280.22 = 20,041.52/x
  3. Step 3: Cross multiply
    30,645.83x = 42,280.22 × 20,041.52
  4. Step 4: Simplify right side
    30,645.83x = 847,359,563.13
  5. Step 5: Solve for x
    x = 847,359,563.13/30,645.83
  6. Step 6: Final answer
    x = 27,650.08

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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.