Home / 31,240.08-46,854.90-13,705.20

Finding the Fourth Proportional to 31,240.08, 46,854.90 and 13,705.20

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Solution

The fourth proportional to 31,240.08, 46,854.90 and 13,705.20 is: 20,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,240.08 : 46,854.90 = 13,705.20 : x
  2. Step 2: Convert to fraction form
    31,240.08/46,854.90 = 13,705.20/x
  3. Step 3: Cross multiply
    31,240.08x = 46,854.90 × 13,705.20
  4. Step 4: Simplify right side
    31,240.08x = 642,155,775.48
  5. Step 5: Solve for x
    x = 642,155,775.48/31,240.08
  6. Step 6: Final answer
    x = 20,555.51

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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.