Home / 30,477.28-42,041.72-17,729.04

Finding the Fourth Proportional to 30,477.28, 42,041.72 and 17,729.04

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Solution

The fourth proportional to 30,477.28, 42,041.72 and 17,729.04 is: 24,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477.28 : 42,041.72 = 17,729.04 : x
  2. Step 2: Convert to fraction form
    30,477.28/42,041.72 = 17,729.04/x
  3. Step 3: Cross multiply
    30,477.28x = 42,041.72 × 17,729.04
  4. Step 4: Simplify right side
    30,477.28x = 745,359,335.55
  5. Step 5: Solve for x
    x = 745,359,335.55/30,477.28
  6. Step 6: Final answer
    x = 24,456.23

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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.