Home / 19,020-28,547.64-9,666.66

Finding the Fourth Proportional to 19,020, 28,547.64 and 9,666.66

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Solution

The fourth proportional to 19,020, 28,547.64 and 9,666.66 is: 14,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020 : 28,547.64 = 9,666.66 : x
  2. Step 2: Convert to fraction form
    19,020/28,547.64 = 9,666.66/x
  3. Step 3: Cross multiply
    19,020x = 28,547.64 × 9,666.66
  4. Step 4: Simplify right side
    19,020x = 275,960,329.68
  5. Step 5: Solve for x
    x = 275,960,329.68/19,020
  6. Step 6: Final answer
    x = 14,508.96

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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.