Home / 21,162.55-31,766.91-15,598.66

Finding the Fourth Proportional to 21,162.55, 31,766.91 and 15,598.66

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Solution

The fourth proportional to 21,162.55, 31,766.91 and 15,598.66 is: 23,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.55 : 31,766.91 = 15,598.66 : x
  2. Step 2: Convert to fraction form
    21,162.55/31,766.91 = 15,598.66/x
  3. Step 3: Cross multiply
    21,162.55x = 31,766.91 × 15,598.66
  4. Step 4: Simplify right side
    21,162.55x = 495,521,228.34
  5. Step 5: Solve for x
    x = 495,521,228.34/21,162.55
  6. Step 6: Final answer
    x = 23,415.01

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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.