Home / 34,775.70-47,990.40-18,860.16

Finding the Fourth Proportional to 34,775.70, 47,990.40 and 18,860.16

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Solution

The fourth proportional to 34,775.70, 47,990.40 and 18,860.16 is: 26,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,775.70 : 47,990.40 = 18,860.16 : x
  2. Step 2: Convert to fraction form
    34,775.70/47,990.40 = 18,860.16/x
  3. Step 3: Cross multiply
    34,775.70x = 47,990.40 × 18,860.16
  4. Step 4: Simplify right side
    34,775.70x = 905,106,622.46
  5. Step 5: Solve for x
    x = 905,106,622.46/34,775.70
  6. Step 6: Final answer
    x = 26,026.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.