Home / 20,510.64-28,304.76-11,898.52

Finding the Fourth Proportional to 20,510.64, 28,304.76 and 11,898.52

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Solution

The fourth proportional to 20,510.64, 28,304.76 and 11,898.52 is: 16,420.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.64 : 28,304.76 = 11,898.52 : x
  2. Step 2: Convert to fraction form
    20,510.64/28,304.76 = 11,898.52/x
  3. Step 3: Cross multiply
    20,510.64x = 28,304.76 × 11,898.52
  4. Step 4: Simplify right side
    20,510.64x = 336,784,752.96
  5. Step 5: Solve for x
    x = 336,784,752.96/20,510.64
  6. Step 6: Final answer
    x = 16,420.00

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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.