Home / 42,448.69-63,673.35-12,868.84

Finding the Fourth Proportional to 42,448.69, 63,673.35 and 12,868.84

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Solution

The fourth proportional to 42,448.69, 63,673.35 and 12,868.84 is: 19,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,448.69 : 63,673.35 = 12,868.84 : x
  2. Step 2: Convert to fraction form
    42,448.69/63,673.35 = 12,868.84/x
  3. Step 3: Cross multiply
    42,448.69x = 63,673.35 × 12,868.84
  4. Step 4: Simplify right side
    42,448.69x = 819,402,153.41
  5. Step 5: Solve for x
    x = 819,402,153.41/42,448.69
  6. Step 6: Final answer
    x = 19,303.36

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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.