Home / 42,843.12-64,267.92-13,264.08

Finding the Fourth Proportional to 42,843.12, 64,267.92 and 13,264.08

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Solution

The fourth proportional to 42,843.12, 64,267.92 and 13,264.08 is: 19,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,843.12 : 64,267.92 = 13,264.08 : x
  2. Step 2: Convert to fraction form
    42,843.12/64,267.92 = 13,264.08/x
  3. Step 3: Cross multiply
    42,843.12x = 64,267.92 × 13,264.08
  4. Step 4: Simplify right side
    42,843.12x = 852,454,832.31
  5. Step 5: Solve for x
    x = 852,454,832.31/42,843.12
  6. Step 6: Final answer
    x = 19,897.12

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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.