Home / 22,503.79-31,055.00-12,431.58

Finding the Fourth Proportional to 22,503.79, 31,055.00 and 12,431.58

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Solution

The fourth proportional to 22,503.79, 31,055.00 and 12,431.58 is: 17,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,503.79 : 31,055.00 = 12,431.58 : x
  2. Step 2: Convert to fraction form
    22,503.79/31,055.00 = 12,431.58/x
  3. Step 3: Cross multiply
    22,503.79x = 31,055.00 × 12,431.58
  4. Step 4: Simplify right side
    22,503.79x = 386,062,616.95
  5. Step 5: Solve for x
    x = 386,062,616.95/22,503.79
  6. Step 6: Final answer
    x = 17,155.45

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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.