Home / 23,017.95-31,731.43-15,243.76

Finding the Fourth Proportional to 23,017.95, 31,731.43 and 15,243.76

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Solution

The fourth proportional to 23,017.95, 31,731.43 and 15,243.76 is: 21,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,017.95 : 31,731.43 = 15,243.76 : x
  2. Step 2: Convert to fraction form
    23,017.95/31,731.43 = 15,243.76/x
  3. Step 3: Cross multiply
    23,017.95x = 31,731.43 × 15,243.76
  4. Step 4: Simplify right side
    23,017.95x = 483,706,303.38
  5. Step 5: Solve for x
    x = 483,706,303.38/23,017.95
  6. Step 6: Final answer
    x = 21,014.31

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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.