Home / 31,068.78-46,577.65-12,340.77

Finding the Fourth Proportional to 31,068.78, 46,577.65 and 12,340.77

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Solution

The fourth proportional to 31,068.78, 46,577.65 and 12,340.77 is: 18,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,068.78 : 46,577.65 = 12,340.77 : x
  2. Step 2: Convert to fraction form
    31,068.78/46,577.65 = 12,340.77/x
  3. Step 3: Cross multiply
    31,068.78x = 46,577.65 × 12,340.77
  4. Step 4: Simplify right side
    31,068.78x = 574,804,065.79
  5. Step 5: Solve for x
    x = 574,804,065.79/31,068.78
  6. Step 6: Final answer
    x = 18,501.02

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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.