Home / 21,070.32-31,623.63-8,597.22

Finding the Fourth Proportional to 21,070.32, 31,623.63 and 8,597.22

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Solution

The fourth proportional to 21,070.32, 31,623.63 and 8,597.22 is: 12,903.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070.32 : 31,623.63 = 8,597.22 : x
  2. Step 2: Convert to fraction form
    21,070.32/31,623.63 = 8,597.22/x
  3. Step 3: Cross multiply
    21,070.32x = 31,623.63 × 8,597.22
  4. Step 4: Simplify right side
    21,070.32x = 271,875,304.31
  5. Step 5: Solve for x
    x = 271,875,304.31/21,070.32
  6. Step 6: Final answer
    x = 12,903.24

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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.