Home / 42,843.20-59,043.48-30,886.16

Finding the Fourth Proportional to 42,843.20, 59,043.48 and 30,886.16

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Solution

The fourth proportional to 42,843.20, 59,043.48 and 30,886.16 is: 42,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,843.20 : 59,043.48 = 30,886.16 : x
  2. Step 2: Convert to fraction form
    42,843.20/59,043.48 = 30,886.16/x
  3. Step 3: Cross multiply
    42,843.20x = 59,043.48 × 30,886.16
  4. Step 4: Simplify right side
    42,843.20x = 1,823,626,370.24
  5. Step 5: Solve for x
    x = 1,823,626,370.24/42,843.20
  6. Step 6: Final answer
    x = 42,565.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.