Home / 30,210.28-45,330.76-13,566.90

Finding the Fourth Proportional to 30,210.28, 45,330.76 and 13,566.90

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Solution

The fourth proportional to 30,210.28, 45,330.76 and 13,566.90 is: 20,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.28 : 45,330.76 = 13,566.90 : x
  2. Step 2: Convert to fraction form
    30,210.28/45,330.76 = 13,566.90/x
  3. Step 3: Cross multiply
    30,210.28x = 45,330.76 × 13,566.90
  4. Step 4: Simplify right side
    30,210.28x = 614,998,074.79
  5. Step 5: Solve for x
    x = 614,998,074.79/30,210.28
  6. Step 6: Final answer
    x = 20,357.25

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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.