Home / 31,411.52-47,119.56-11,690.06

Finding the Fourth Proportional to 31,411.52, 47,119.56 and 11,690.06

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Solution

The fourth proportional to 31,411.52, 47,119.56 and 11,690.06 is: 17,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.52 : 47,119.56 = 11,690.06 : x
  2. Step 2: Convert to fraction form
    31,411.52/47,119.56 = 11,690.06/x
  3. Step 3: Cross multiply
    31,411.52x = 47,119.56 × 11,690.06
  4. Step 4: Simplify right side
    31,411.52x = 550,830,601.37
  5. Step 5: Solve for x
    x = 550,830,601.37/31,411.52
  6. Step 6: Final answer
    x = 17,535.95

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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.