Home / 30,905.65-42,649.54-17,476.86

Finding the Fourth Proportional to 30,905.65, 42,649.54 and 17,476.86

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Solution

The fourth proportional to 30,905.65, 42,649.54 and 17,476.86 is: 24,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.65 : 42,649.54 = 17,476.86 : x
  2. Step 2: Convert to fraction form
    30,905.65/42,649.54 = 17,476.86/x
  3. Step 3: Cross multiply
    30,905.65x = 42,649.54 × 17,476.86
  4. Step 4: Simplify right side
    30,905.65x = 745,380,155.89
  5. Step 5: Solve for x
    x = 745,380,155.89/30,905.65
  6. Step 6: Final answer
    x = 24,117.92

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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.