Home / 30,235.80-45,332.10-13,582.20

Finding the Fourth Proportional to 30,235.80, 45,332.10 and 13,582.20

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Solution

The fourth proportional to 30,235.80, 45,332.10 and 13,582.20 is: 20,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,235.80 : 45,332.10 = 13,582.20 : x
  2. Step 2: Convert to fraction form
    30,235.80/45,332.10 = 13,582.20/x
  3. Step 3: Cross multiply
    30,235.80x = 45,332.10 × 13,582.20
  4. Step 4: Simplify right side
    30,235.80x = 615,709,648.62
  5. Step 5: Solve for x
    x = 615,709,648.62/30,235.80
  6. Step 6: Final answer
    x = 20,363.60

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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.