Home / 21,336.04-31,970.22-15,465.16

Finding the Fourth Proportional to 21,336.04, 31,970.22 and 15,465.16

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Solution

The fourth proportional to 21,336.04, 31,970.22 and 15,465.16 is: 23,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.04 : 31,970.22 = 15,465.16 : x
  2. Step 2: Convert to fraction form
    21,336.04/31,970.22 = 15,465.16/x
  3. Step 3: Cross multiply
    21,336.04x = 31,970.22 × 15,465.16
  4. Step 4: Simplify right side
    21,336.04x = 494,424,567.54
  5. Step 5: Solve for x
    x = 494,424,567.54/21,336.04
  6. Step 6: Final answer
    x = 23,173.21

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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.