Home / 42,800.69-64,223.40-17,518.97

Finding the Fourth Proportional to 42,800.69, 64,223.40 and 17,518.97

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Solution

The fourth proportional to 42,800.69, 64,223.40 and 17,518.97 is: 26,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,800.69 : 64,223.40 = 17,518.97 : x
  2. Step 2: Convert to fraction form
    42,800.69/64,223.40 = 17,518.97/x
  3. Step 3: Cross multiply
    42,800.69x = 64,223.40 × 17,518.97
  4. Step 4: Simplify right side
    42,800.69x = 1,125,127,496.78
  5. Step 5: Solve for x
    x = 1,125,127,496.78/42,800.69
  6. Step 6: Final answer
    x = 26,287.60

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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.