Home / 31,858.11-47,711.16-18,502.83

Finding the Fourth Proportional to 31,858.11, 47,711.16 and 18,502.83

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Solution

The fourth proportional to 31,858.11, 47,711.16 and 18,502.83 is: 27,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,858.11 : 47,711.16 = 18,502.83 : x
  2. Step 2: Convert to fraction form
    31,858.11/47,711.16 = 18,502.83/x
  3. Step 3: Cross multiply
    31,858.11x = 47,711.16 × 18,502.83
  4. Step 4: Simplify right side
    31,858.11x = 882,791,482.58
  5. Step 5: Solve for x
    x = 882,791,482.58/31,858.11
  6. Step 6: Final answer
    x = 27,710.10

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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.