Home / 21,948.65-30,280.98-14,399.18

Finding the Fourth Proportional to 21,948.65, 30,280.98 and 14,399.18

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Solution

The fourth proportional to 21,948.65, 30,280.98 and 14,399.18 is: 19,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948.65 : 30,280.98 = 14,399.18 : x
  2. Step 2: Convert to fraction form
    21,948.65/30,280.98 = 14,399.18/x
  3. Step 3: Cross multiply
    21,948.65x = 30,280.98 × 14,399.18
  4. Step 4: Simplify right side
    21,948.65x = 436,021,281.60
  5. Step 5: Solve for x
    x = 436,021,281.60/21,948.65
  6. Step 6: Final answer
    x = 19,865.52

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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.