Home / 31,288.78-46,886.05-18,795.07

Finding the Fourth Proportional to 31,288.78, 46,886.05 and 18,795.07

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Solution

The fourth proportional to 31,288.78, 46,886.05 and 18,795.07 is: 28,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.78 : 46,886.05 = 18,795.07 : x
  2. Step 2: Convert to fraction form
    31,288.78/46,886.05 = 18,795.07/x
  3. Step 3: Cross multiply
    31,288.78x = 46,886.05 × 18,795.07
  4. Step 4: Simplify right side
    31,288.78x = 881,226,591.77
  5. Step 5: Solve for x
    x = 881,226,591.77/31,288.78
  6. Step 6: Final answer
    x = 28,164.30

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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.