Home / 27,772.17-38,319.66-16,445.21

Finding the Fourth Proportional to 27,772.17, 38,319.66 and 16,445.21

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Solution

The fourth proportional to 27,772.17, 38,319.66 and 16,445.21 is: 22,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.17 : 38,319.66 = 16,445.21 : x
  2. Step 2: Convert to fraction form
    27,772.17/38,319.66 = 16,445.21/x
  3. Step 3: Cross multiply
    27,772.17x = 38,319.66 × 16,445.21
  4. Step 4: Simplify right side
    27,772.17x = 630,174,995.19
  5. Step 5: Solve for x
    x = 630,174,995.19/27,772.17
  6. Step 6: Final answer
    x = 22,690.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.