Home / 21,000,684-28,980,963.36-11,342,892

Finding the Fourth Proportional to 21,000,684, 28,980,963.36 and 11,342,892

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Solution

The fourth proportional to 21,000,684, 28,980,963.36 and 11,342,892 is: 15,653,201.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,684 : 28,980,963.36 = 11,342,892 : x
  2. Step 2: Convert to fraction form
    21,000,684/28,980,963.36 = 11,342,892/x
  3. Step 3: Cross multiply
    21,000,684x = 28,980,963.36 × 11,342,892
  4. Step 4: Simplify right side
    21,000,684x = 328,727,937,448,437.12
  5. Step 5: Solve for x
    x = 328,727,937,448,437.12/21,000,684
  6. Step 6: Final answer
    x = 15,653,201.46

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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.