Home / 30,508.11-42,106.64-22,148.91

Finding the Fourth Proportional to 30,508.11, 42,106.64 and 22,148.91

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Solution

The fourth proportional to 30,508.11, 42,106.64 and 22,148.91 is: 30,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.11 : 42,106.64 = 22,148.91 : x
  2. Step 2: Convert to fraction form
    30,508.11/42,106.64 = 22,148.91/x
  3. Step 3: Cross multiply
    30,508.11x = 42,106.64 × 22,148.91
  4. Step 4: Simplify right side
    30,508.11x = 932,616,069.02
  5. Step 5: Solve for x
    x = 932,616,069.02/30,508.11
  6. Step 6: Final answer
    x = 30,569.45

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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.