Home / 31,312.35-46,973.70-15,518.12

Finding the Fourth Proportional to 31,312.35, 46,973.70 and 15,518.12

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Solution

The fourth proportional to 31,312.35, 46,973.70 and 15,518.12 is: 23,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.35 : 46,973.70 = 15,518.12 : x
  2. Step 2: Convert to fraction form
    31,312.35/46,973.70 = 15,518.12/x
  3. Step 3: Cross multiply
    31,312.35x = 46,973.70 × 15,518.12
  4. Step 4: Simplify right side
    31,312.35x = 728,943,278.58
  5. Step 5: Solve for x
    x = 728,943,278.58/31,312.35
  6. Step 6: Final answer
    x = 23,279.74

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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.