Home / 21,324.57-31,970.34-14,293.32

Finding the Fourth Proportional to 21,324.57, 31,970.34 and 14,293.32

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Solution

The fourth proportional to 21,324.57, 31,970.34 and 14,293.32 is: 21,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.57 : 31,970.34 = 14,293.32 : x
  2. Step 2: Convert to fraction form
    21,324.57/31,970.34 = 14,293.32/x
  3. Step 3: Cross multiply
    21,324.57x = 31,970.34 × 14,293.32
  4. Step 4: Simplify right side
    21,324.57x = 456,962,300.13
  5. Step 5: Solve for x
    x = 456,962,300.13/21,324.57
  6. Step 6: Final answer
    x = 21,428.91

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1.5x scale

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.