Home / 21,821.51-32,732.67-7,031.72

Finding the Fourth Proportional to 21,821.51, 32,732.67 and 7,031.72

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Solution

The fourth proportional to 21,821.51, 32,732.67 and 7,031.72 is: 10,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.51 : 32,732.67 = 7,031.72 : x
  2. Step 2: Convert to fraction form
    21,821.51/32,732.67 = 7,031.72/x
  3. Step 3: Cross multiply
    21,821.51x = 32,732.67 × 7,031.72
  4. Step 4: Simplify right side
    21,821.51x = 230,166,970.29
  5. Step 5: Solve for x
    x = 230,166,970.29/21,821.51
  6. Step 6: Final answer
    x = 10,547.71

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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.