Home / 28,068.55-38,741.09-18,510.15

Finding the Fourth Proportional to 28,068.55, 38,741.09 and 18,510.15

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Solution

The fourth proportional to 28,068.55, 38,741.09 and 18,510.15 is: 25,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.55 : 38,741.09 = 18,510.15 : x
  2. Step 2: Convert to fraction form
    28,068.55/38,741.09 = 18,510.15/x
  3. Step 3: Cross multiply
    28,068.55x = 38,741.09 × 18,510.15
  4. Step 4: Simplify right side
    28,068.55x = 717,103,387.06
  5. Step 5: Solve for x
    x = 717,103,387.06/28,068.55
  6. Step 6: Final answer
    x = 25,548.29

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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.