Home / 28,877.41-39,837.13-18,802.18

Finding the Fourth Proportional to 28,877.41, 39,837.13 and 18,802.18

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Solution

The fourth proportional to 28,877.41, 39,837.13 and 18,802.18 is: 25,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.41 : 39,837.13 = 18,802.18 : x
  2. Step 2: Convert to fraction form
    28,877.41/39,837.13 = 18,802.18/x
  3. Step 3: Cross multiply
    28,877.41x = 39,837.13 × 18,802.18
  4. Step 4: Simplify right side
    28,877.41x = 749,024,888.94
  5. Step 5: Solve for x
    x = 749,024,888.94/28,877.41
  6. Step 6: Final answer
    x = 25,938.09

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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.