Home / 31,862.35-47,787.13-30,281.64

Finding the Fourth Proportional to 31,862.35, 47,787.13 and 30,281.64

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Solution

The fourth proportional to 31,862.35, 47,787.13 and 30,281.64 is: 45,416.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.35 : 47,787.13 = 30,281.64 : x
  2. Step 2: Convert to fraction form
    31,862.35/47,787.13 = 30,281.64/x
  3. Step 3: Cross multiply
    31,862.35x = 47,787.13 × 30,281.64
  4. Step 4: Simplify right side
    31,862.35x = 1,447,072,667.29
  5. Step 5: Solve for x
    x = 1,447,072,667.29/31,862.35
  6. Step 6: Final answer
    x = 45,416.38

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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.