Home / 31,730.47-47,595.57-18,665.98

Finding the Fourth Proportional to 31,730.47, 47,595.57 and 18,665.98

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Solution

The fourth proportional to 31,730.47, 47,595.57 and 18,665.98 is: 27,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730.47 : 47,595.57 = 18,665.98 : x
  2. Step 2: Convert to fraction form
    31,730.47/47,595.57 = 18,665.98/x
  3. Step 3: Cross multiply
    31,730.47x = 47,595.57 × 18,665.98
  4. Step 4: Simplify right side
    31,730.47x = 888,417,957.71
  5. Step 5: Solve for x
    x = 888,417,957.71/31,730.47
  6. Step 6: Final answer
    x = 27,998.89

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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.