Home / 42,837.80-64,240.72-14,749.92

Finding the Fourth Proportional to 42,837.80, 64,240.72 and 14,749.92

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Solution

The fourth proportional to 42,837.80, 64,240.72 and 14,749.92 is: 22,119.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,837.80 : 64,240.72 = 14,749.92 : x
  2. Step 2: Convert to fraction form
    42,837.80/64,240.72 = 14,749.92/x
  3. Step 3: Cross multiply
    42,837.80x = 64,240.72 × 14,749.92
  4. Step 4: Simplify right side
    42,837.80x = 947,545,480.74
  5. Step 5: Solve for x
    x = 947,545,480.74/42,837.80
  6. Step 6: Final answer
    x = 22,119.38

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1.5x scale

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.