Home / 42,980.48-64,484.73-21,622.17

Finding the Fourth Proportional to 42,980.48, 64,484.73 and 21,622.17

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Solution

The fourth proportional to 42,980.48, 64,484.73 and 21,622.17 is: 32,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,980.48 : 64,484.73 = 21,622.17 : x
  2. Step 2: Convert to fraction form
    42,980.48/64,484.73 = 21,622.17/x
  3. Step 3: Cross multiply
    42,980.48x = 64,484.73 × 21,622.17
  4. Step 4: Simplify right side
    42,980.48x = 1,394,299,794.46
  5. Step 5: Solve for x
    x = 1,394,299,794.46/42,980.48
  6. Step 6: Final answer
    x = 32,440.30

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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.