Home / 21,688.05-29,894.90-17,702.31

Finding the Fourth Proportional to 21,688.05, 29,894.90 and 17,702.31

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Solution

The fourth proportional to 21,688.05, 29,894.90 and 17,702.31 is: 24,400.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.05 : 29,894.90 = 17,702.31 : x
  2. Step 2: Convert to fraction form
    21,688.05/29,894.90 = 17,702.31/x
  3. Step 3: Cross multiply
    21,688.05x = 29,894.90 × 17,702.31
  4. Step 4: Simplify right side
    21,688.05x = 529,208,698.71
  5. Step 5: Solve for x
    x = 529,208,698.71/21,688.05
  6. Step 6: Final answer
    x = 24,400.94

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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.