Home / 42,030.07-63,045.30-12,448.46

Finding the Fourth Proportional to 42,030.07, 63,045.30 and 12,448.46

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Solution

The fourth proportional to 42,030.07, 63,045.30 and 12,448.46 is: 18,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,030.07 : 63,045.30 = 12,448.46 : x
  2. Step 2: Convert to fraction form
    42,030.07/63,045.30 = 12,448.46/x
  3. Step 3: Cross multiply
    42,030.07x = 63,045.30 × 12,448.46
  4. Step 4: Simplify right side
    42,030.07x = 784,816,895.24
  5. Step 5: Solve for x
    x = 784,816,895.24/42,030.07
  6. Step 6: Final answer
    x = 18,672.75

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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.