Home / 30,859.86-42,586.56-16,712.76

Finding the Fourth Proportional to 30,859.86, 42,586.56 and 16,712.76

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Solution

The fourth proportional to 30,859.86, 42,586.56 and 16,712.76 is: 23,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.86 : 42,586.56 = 16,712.76 : x
  2. Step 2: Convert to fraction form
    30,859.86/42,586.56 = 16,712.76/x
  3. Step 3: Cross multiply
    30,859.86x = 42,586.56 × 16,712.76
  4. Step 4: Simplify right side
    30,859.86x = 711,738,956.51
  5. Step 5: Solve for x
    x = 711,738,956.51/30,859.86
  6. Step 6: Final answer
    x = 23,063.58

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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.