Home / 21,077.10-31,617.45-6,285.06

Finding the Fourth Proportional to 21,077.10, 31,617.45 and 6,285.06

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Solution

The fourth proportional to 21,077.10, 31,617.45 and 6,285.06 is: 9,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.10 : 31,617.45 = 6,285.06 : x
  2. Step 2: Convert to fraction form
    21,077.10/31,617.45 = 6,285.06/x
  3. Step 3: Cross multiply
    21,077.10x = 31,617.45 × 6,285.06
  4. Step 4: Simplify right side
    21,077.10x = 198,717,570.30
  5. Step 5: Solve for x
    x = 198,717,570.30/21,077.10
  6. Step 6: Final answer
    x = 9,428.13

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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.