Home / 31,233.36-46,817.40-13,688.40

Finding the Fourth Proportional to 31,233.36, 46,817.40 and 13,688.40

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Solution

The fourth proportional to 31,233.36, 46,817.40 and 13,688.40 is: 20,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,233.36 : 46,817.40 = 13,688.40 : x
  2. Step 2: Convert to fraction form
    31,233.36/46,817.40 = 13,688.40/x
  3. Step 3: Cross multiply
    31,233.36x = 46,817.40 × 13,688.40
  4. Step 4: Simplify right side
    31,233.36x = 640,855,298.16
  5. Step 5: Solve for x
    x = 640,855,298.16/31,233.36
  6. Step 6: Final answer
    x = 20,518.30

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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.