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Finding the Fourth Proportional to 30,895.88, 42,604.32 and 26,434.40

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Solution

The fourth proportional to 30,895.88, 42,604.32 and 26,434.40 is: 36,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,895.88 : 42,604.32 = 26,434.40 : x
  2. Step 2: Convert to fraction form
    30,895.88/42,604.32 = 26,434.40/x
  3. Step 3: Cross multiply
    30,895.88x = 42,604.32 × 26,434.40
  4. Step 4: Simplify right side
    30,895.88x = 1,126,219,636.61
  5. Step 5: Solve for x
    x = 1,126,219,636.61/30,895.88
  6. Step 6: Final answer
    x = 36,452.10

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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.