Home / 30,755.34-42,465.11-18,834.93

Finding the Fourth Proportional to 30,755.34, 42,465.11 and 18,834.93

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Solution

The fourth proportional to 30,755.34, 42,465.11 and 18,834.93 is: 26,006.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,755.34 : 42,465.11 = 18,834.93 : x
  2. Step 2: Convert to fraction form
    30,755.34/42,465.11 = 18,834.93/x
  3. Step 3: Cross multiply
    30,755.34x = 42,465.11 × 18,834.93
  4. Step 4: Simplify right side
    30,755.34x = 799,827,280.12
  5. Step 5: Solve for x
    x = 799,827,280.12/30,755.34
  6. Step 6: Final answer
    x = 26,006.13

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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.