Home / 46,139.17-69,154.76-21,181.63

Finding the Fourth Proportional to 46,139.17, 69,154.76 and 21,181.63

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Solution

The fourth proportional to 46,139.17, 69,154.76 and 21,181.63 is: 31,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,139.17 : 69,154.76 = 21,181.63 : x
  2. Step 2: Convert to fraction form
    46,139.17/69,154.76 = 21,181.63/x
  3. Step 3: Cross multiply
    46,139.17x = 69,154.76 × 21,181.63
  4. Step 4: Simplify right side
    46,139.17x = 1,464,810,354.29
  5. Step 5: Solve for x
    x = 1,464,810,354.29/46,139.17
  6. Step 6: Final answer
    x = 31,747.65

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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.