Home / 30,646.83-42,281.59-20,042.52

Finding the Fourth Proportional to 30,646.83, 42,281.59 and 20,042.52

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Solution

The fourth proportional to 30,646.83, 42,281.59 and 20,042.52 is: 27,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,646.83 : 42,281.59 = 20,042.52 : x
  2. Step 2: Convert to fraction form
    30,646.83/42,281.59 = 20,042.52/x
  3. Step 3: Cross multiply
    30,646.83x = 42,281.59 × 20,042.52
  4. Step 4: Simplify right side
    30,646.83x = 847,429,613.21
  5. Step 5: Solve for x
    x = 847,429,613.21/30,646.83
  6. Step 6: Final answer
    x = 27,651.46

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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.