Home / 31,935.63-47,903.81-12,215.19

Finding the Fourth Proportional to 31,935.63, 47,903.81 and 12,215.19

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Solution

The fourth proportional to 31,935.63, 47,903.81 and 12,215.19 is: 18,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,935.63 : 47,903.81 = 12,215.19 : x
  2. Step 2: Convert to fraction form
    31,935.63/47,903.81 = 12,215.19/x
  3. Step 3: Cross multiply
    31,935.63x = 47,903.81 × 12,215.19
  4. Step 4: Simplify right side
    31,935.63x = 585,154,079.80
  5. Step 5: Solve for x
    x = 585,154,079.80/31,935.63
  6. Step 6: Final answer
    x = 18,322.92

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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.