Home / 20,952.02-31,423.16-7,810.58

Finding the Fourth Proportional to 20,952.02, 31,423.16 and 7,810.58

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Solution

The fourth proportional to 20,952.02, 31,423.16 and 7,810.58 is: 11,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.02 : 31,423.16 = 7,810.58 : x
  2. Step 2: Convert to fraction form
    20,952.02/31,423.16 = 7,810.58/x
  3. Step 3: Cross multiply
    20,952.02x = 31,423.16 × 7,810.58
  4. Step 4: Simplify right side
    20,952.02x = 245,433,105.03
  5. Step 5: Solve for x
    x = 245,433,105.03/20,952.02
  6. Step 6: Final answer
    x = 11,714.05

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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.