Home / 31,123.80-46,685.70-27,430.20

Finding the Fourth Proportional to 31,123.80, 46,685.70 and 27,430.20

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Solution

The fourth proportional to 31,123.80, 46,685.70 and 27,430.20 is: 41,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,123.80 : 46,685.70 = 27,430.20 : x
  2. Step 2: Convert to fraction form
    31,123.80/46,685.70 = 27,430.20/x
  3. Step 3: Cross multiply
    31,123.80x = 46,685.70 × 27,430.20
  4. Step 4: Simplify right side
    31,123.80x = 1,280,598,088.14
  5. Step 5: Solve for x
    x = 1,280,598,088.14/31,123.80
  6. Step 6: Final answer
    x = 41,145.30

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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.