Home / 20,130.86-30,133.40-13,854.17

Finding the Fourth Proportional to 20,130.86, 30,133.40 and 13,854.17

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Solution

The fourth proportional to 20,130.86, 30,133.40 and 13,854.17 is: 20,737.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.86 : 30,133.40 = 13,854.17 : x
  2. Step 2: Convert to fraction form
    20,130.86/30,133.40 = 13,854.17/x
  3. Step 3: Cross multiply
    20,130.86x = 30,133.40 × 13,854.17
  4. Step 4: Simplify right side
    20,130.86x = 417,473,026.34
  5. Step 5: Solve for x
    x = 417,473,026.34/20,130.86
  6. Step 6: Final answer
    x = 20,737.97

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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.