Home / 28,056.68-38,701.14-16,718.72

Finding the Fourth Proportional to 28,056.68, 38,701.14 and 16,718.72

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Solution

The fourth proportional to 28,056.68, 38,701.14 and 16,718.72 is: 23,061.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.68 : 38,701.14 = 16,718.72 : x
  2. Step 2: Convert to fraction form
    28,056.68/38,701.14 = 16,718.72/x
  3. Step 3: Cross multiply
    28,056.68x = 38,701.14 × 16,718.72
  4. Step 4: Simplify right side
    28,056.68x = 647,033,523.34
  5. Step 5: Solve for x
    x = 647,033,523.34/28,056.68
  6. Step 6: Final answer
    x = 23,061.66

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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.