Home / 31,319.06-46,980.80-12,599.21

Finding the Fourth Proportional to 31,319.06, 46,980.80 and 12,599.21

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Solution

The fourth proportional to 31,319.06, 46,980.80 and 12,599.21 is: 18,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.06 : 46,980.80 = 12,599.21 : x
  2. Step 2: Convert to fraction form
    31,319.06/46,980.80 = 12,599.21/x
  3. Step 3: Cross multiply
    31,319.06x = 46,980.80 × 12,599.21
  4. Step 4: Simplify right side
    31,319.06x = 591,920,965.17
  5. Step 5: Solve for x
    x = 591,920,965.17/31,319.06
  6. Step 6: Final answer
    x = 18,899.70

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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.