Home / 38,637.80-57,956.70-12,343.40

Finding the Fourth Proportional to 38,637.80, 57,956.70 and 12,343.40

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Solution

The fourth proportional to 38,637.80, 57,956.70 and 12,343.40 is: 18,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,637.80 : 57,956.70 = 12,343.40 : x
  2. Step 2: Convert to fraction form
    38,637.80/57,956.70 = 12,343.40/x
  3. Step 3: Cross multiply
    38,637.80x = 57,956.70 × 12,343.40
  4. Step 4: Simplify right side
    38,637.80x = 715,382,730.78
  5. Step 5: Solve for x
    x = 715,382,730.78/38,637.80
  6. Step 6: Final answer
    x = 18,515.10

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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.