Home / 23,135.79-31,925.46-13,574.70

Finding the Fourth Proportional to 23,135.79, 31,925.46 and 13,574.70

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Solution

The fourth proportional to 23,135.79, 31,925.46 and 13,574.70 is: 18,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,135.79 : 31,925.46 = 13,574.70 : x
  2. Step 2: Convert to fraction form
    23,135.79/31,925.46 = 13,574.70/x
  3. Step 3: Cross multiply
    23,135.79x = 31,925.46 × 13,574.70
  4. Step 4: Simplify right side
    23,135.79x = 433,378,541.86
  5. Step 5: Solve for x
    x = 433,378,541.86/23,135.79
  6. Step 6: Final answer
    x = 18,731.95

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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.