Home / 21,048.24-31,561.80-7,003.32

Finding the Fourth Proportional to 21,048.24, 31,561.80 and 7,003.32

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Solution

The fourth proportional to 21,048.24, 31,561.80 and 7,003.32 is: 10,501.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.24 : 31,561.80 = 7,003.32 : x
  2. Step 2: Convert to fraction form
    21,048.24/31,561.80 = 7,003.32/x
  3. Step 3: Cross multiply
    21,048.24x = 31,561.80 × 7,003.32
  4. Step 4: Simplify right side
    21,048.24x = 221,037,385.18
  5. Step 5: Solve for x
    x = 221,037,385.18/21,048.24
  6. Step 6: Final answer
    x = 10,501.47

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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.