Home / 31,316.16-46,947.84-21,431.04

Finding the Fourth Proportional to 31,316.16, 46,947.84 and 21,431.04

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Solution

The fourth proportional to 31,316.16, 46,947.84 and 21,431.04 is: 32,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.16 : 46,947.84 = 21,431.04 : x
  2. Step 2: Convert to fraction form
    31,316.16/46,947.84 = 21,431.04/x
  3. Step 3: Cross multiply
    31,316.16x = 46,947.84 × 21,431.04
  4. Step 4: Simplify right side
    31,316.16x = 1,006,141,036.95
  5. Step 5: Solve for x
    x = 1,006,141,036.95/31,316.16
  6. Step 6: Final answer
    x = 32,128.49

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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.