Home / 42,949.76-64,417.12-11,360.12

Finding the Fourth Proportional to 42,949.76, 64,417.12 and 11,360.12

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Solution

The fourth proportional to 42,949.76, 64,417.12 and 11,360.12 is: 17,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,949.76 : 64,417.12 = 11,360.12 : x
  2. Step 2: Convert to fraction form
    42,949.76/64,417.12 = 11,360.12/x
  3. Step 3: Cross multiply
    42,949.76x = 64,417.12 × 11,360.12
  4. Step 4: Simplify right side
    42,949.76x = 731,786,213.25
  5. Step 5: Solve for x
    x = 731,786,213.25/42,949.76
  6. Step 6: Final answer
    x = 17,038.19

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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.