Home / 30,398.36-45,613.59-21,570.74

Finding the Fourth Proportional to 30,398.36, 45,613.59 and 21,570.74

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Solution

The fourth proportional to 30,398.36, 45,613.59 and 21,570.74 is: 32,367.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,398.36 : 45,613.59 = 21,570.74 : x
  2. Step 2: Convert to fraction form
    30,398.36/45,613.59 = 21,570.74/x
  3. Step 3: Cross multiply
    30,398.36x = 45,613.59 × 21,570.74
  4. Step 4: Simplify right side
    30,398.36x = 983,918,662.29
  5. Step 5: Solve for x
    x = 983,918,662.29/30,398.36
  6. Step 6: Final answer
    x = 32,367.49

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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.