Home / 42,206.81-63,291.51-12,619.13

Finding the Fourth Proportional to 42,206.81, 63,291.51 and 12,619.13

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Solution

The fourth proportional to 42,206.81, 63,291.51 and 12,619.13 is: 18,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,206.81 : 63,291.51 = 12,619.13 : x
  2. Step 2: Convert to fraction form
    42,206.81/63,291.51 = 12,619.13/x
  3. Step 3: Cross multiply
    42,206.81x = 63,291.51 × 12,619.13
  4. Step 4: Simplify right side
    42,206.81x = 798,683,476.13
  5. Step 5: Solve for x
    x = 798,683,476.13/42,206.81
  6. Step 6: Final answer
    x = 18,923.10

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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.