Home / 31,140.36-46,713.06-13,133.76

Finding the Fourth Proportional to 31,140.36, 46,713.06 and 13,133.76

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Solution

The fourth proportional to 31,140.36, 46,713.06 and 13,133.76 is: 19,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.36 : 46,713.06 = 13,133.76 : x
  2. Step 2: Convert to fraction form
    31,140.36/46,713.06 = 13,133.76/x
  3. Step 3: Cross multiply
    31,140.36x = 46,713.06 × 13,133.76
  4. Step 4: Simplify right side
    31,140.36x = 613,518,118.91
  5. Step 5: Solve for x
    x = 613,518,118.91/31,140.36
  6. Step 6: Final answer
    x = 19,701.70

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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.