Home / 42,823.63-64,236.86-14,743.40

Finding the Fourth Proportional to 42,823.63, 64,236.86 and 14,743.40

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Solution

The fourth proportional to 42,823.63, 64,236.86 and 14,743.40 is: 22,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,823.63 : 64,236.86 = 14,743.40 : x
  2. Step 2: Convert to fraction form
    42,823.63/64,236.86 = 14,743.40/x
  3. Step 3: Cross multiply
    42,823.63x = 64,236.86 × 14,743.40
  4. Step 4: Simplify right side
    42,823.63x = 947,069,382.11
  5. Step 5: Solve for x
    x = 947,069,382.11/42,823.63
  6. Step 6: Final answer
    x = 22,115.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.