Home / 42,030.74-63,045.98-12,450.87

Finding the Fourth Proportional to 42,030.74, 63,045.98 and 12,450.87

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Solution

The fourth proportional to 42,030.74, 63,045.98 and 12,450.87 is: 18,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,030.74 : 63,045.98 = 12,450.87 : x
  2. Step 2: Convert to fraction form
    42,030.74/63,045.98 = 12,450.87/x
  3. Step 3: Cross multiply
    42,030.74x = 63,045.98 × 12,450.87
  4. Step 4: Simplify right side
    42,030.74x = 784,977,238.75
  5. Step 5: Solve for x
    x = 784,977,238.75/42,030.74
  6. Step 6: Final answer
    x = 18,676.27

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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.