Home / 30,875.56-42,608.22-16,728.76

Finding the Fourth Proportional to 30,875.56, 42,608.22 and 16,728.76

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Solution

The fourth proportional to 30,875.56, 42,608.22 and 16,728.76 is: 23,085.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,875.56 : 42,608.22 = 16,728.76 : x
  2. Step 2: Convert to fraction form
    30,875.56/42,608.22 = 16,728.76/x
  3. Step 3: Cross multiply
    30,875.56x = 42,608.22 × 16,728.76
  4. Step 4: Simplify right side
    30,875.56x = 712,782,686.41
  5. Step 5: Solve for x
    x = 712,782,686.41/30,875.56
  6. Step 6: Final answer
    x = 23,085.66

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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.