Home / 28,266.10-42,400.07-14,218.47

Finding the Fourth Proportional to 28,266.10, 42,400.07 and 14,218.47

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Solution

The fourth proportional to 28,266.10, 42,400.07 and 14,218.47 is: 21,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.10 : 42,400.07 = 14,218.47 : x
  2. Step 2: Convert to fraction form
    28,266.10/42,400.07 = 14,218.47/x
  3. Step 3: Cross multiply
    28,266.10x = 42,400.07 × 14,218.47
  4. Step 4: Simplify right side
    28,266.10x = 602,864,123.29
  5. Step 5: Solve for x
    x = 602,864,123.29/28,266.10
  6. Step 6: Final answer
    x = 21,328.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.