Home / 23,143.52-31,937.76-13,071.78

Finding the Fourth Proportional to 23,143.52, 31,937.76 and 13,071.78

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Solution

The fourth proportional to 23,143.52, 31,937.76 and 13,071.78 is: 18,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,143.52 : 31,937.76 = 13,071.78 : x
  2. Step 2: Convert to fraction form
    23,143.52/31,937.76 = 13,071.78/x
  3. Step 3: Cross multiply
    23,143.52x = 31,937.76 × 13,071.78
  4. Step 4: Simplify right side
    23,143.52x = 417,483,372.41
  5. Step 5: Solve for x
    x = 417,483,372.41/23,143.52
  6. Step 6: Final answer
    x = 18,038.89

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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.