Home / 42,922.86-64,391.71-14,457.08

Finding the Fourth Proportional to 42,922.86, 64,391.71 and 14,457.08

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Solution

The fourth proportional to 42,922.86, 64,391.71 and 14,457.08 is: 21,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,922.86 : 64,391.71 = 14,457.08 : x
  2. Step 2: Convert to fraction form
    42,922.86/64,391.71 = 14,457.08/x
  3. Step 3: Cross multiply
    42,922.86x = 64,391.71 × 14,457.08
  4. Step 4: Simplify right side
    42,922.86x = 930,916,254.75
  5. Step 5: Solve for x
    x = 930,916,254.75/42,922.86
  6. Step 6: Final answer
    x = 21,688.12

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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.