Home / 42,005.50-57,967.86-23,142.76

Finding the Fourth Proportional to 42,005.50, 57,967.86 and 23,142.76

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Solution

The fourth proportional to 42,005.50, 57,967.86 and 23,142.76 is: 31,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.50 : 57,967.86 = 23,142.76 : x
  2. Step 2: Convert to fraction form
    42,005.50/57,967.86 = 23,142.76/x
  3. Step 3: Cross multiply
    42,005.50x = 57,967.86 × 23,142.76
  4. Step 4: Simplify right side
    42,005.50x = 1,341,536,271.69
  5. Step 5: Solve for x
    x = 1,341,536,271.69/42,005.50
  6. Step 6: Final answer
    x = 31,937.16

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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.