Home / 21,024.06-31,536.90-6,985.32

Finding the Fourth Proportional to 21,024.06, 31,536.90 and 6,985.32

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Solution

The fourth proportional to 21,024.06, 31,536.90 and 6,985.32 is: 10,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.06 : 31,536.90 = 6,985.32 : x
  2. Step 2: Convert to fraction form
    21,024.06/31,536.90 = 6,985.32/x
  3. Step 3: Cross multiply
    21,024.06x = 31,536.90 × 6,985.32
  4. Step 4: Simplify right side
    21,024.06x = 220,295,338.31
  5. Step 5: Solve for x
    x = 220,295,338.31/21,024.06
  6. Step 6: Final answer
    x = 10,478.25

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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.