Home / 42,988.19-64,494.21-18,022.37

Finding the Fourth Proportional to 42,988.19, 64,494.21 and 18,022.37

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Solution

The fourth proportional to 42,988.19, 64,494.21 and 18,022.37 is: 27,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,988.19 : 64,494.21 = 18,022.37 : x
  2. Step 2: Convert to fraction form
    42,988.19/64,494.21 = 18,022.37/x
  3. Step 3: Cross multiply
    42,988.19x = 64,494.21 × 18,022.37
  4. Step 4: Simplify right side
    42,988.19x = 1,162,338,515.48
  5. Step 5: Solve for x
    x = 1,162,338,515.48/42,988.19
  6. Step 6: Final answer
    x = 27,038.55

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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.