Home / 28,055.68-38,699.76-16,717.72

Finding the Fourth Proportional to 28,055.68, 38,699.76 and 16,717.72

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Solution

The fourth proportional to 28,055.68, 38,699.76 and 16,717.72 is: 23,060.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.68 : 38,699.76 = 16,717.72 : x
  2. Step 2: Convert to fraction form
    28,055.68/38,699.76 = 16,717.72/x
  3. Step 3: Cross multiply
    28,055.68x = 38,699.76 × 16,717.72
  4. Step 4: Simplify right side
    28,055.68x = 646,971,751.75
  5. Step 5: Solve for x
    x = 646,971,751.75/28,055.68
  6. Step 6: Final answer
    x = 23,060.28

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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.