Home / 42,369.21-63,554.19-10,779.30

Finding the Fourth Proportional to 42,369.21, 63,554.19 and 10,779.30

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Solution

The fourth proportional to 42,369.21, 63,554.19 and 10,779.30 is: 16,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,369.21 : 63,554.19 = 10,779.30 : x
  2. Step 2: Convert to fraction form
    42,369.21/63,554.19 = 10,779.30/x
  3. Step 3: Cross multiply
    42,369.21x = 63,554.19 × 10,779.30
  4. Step 4: Simplify right side
    42,369.21x = 685,069,639.84
  5. Step 5: Solve for x
    x = 685,069,639.84/42,369.21
  6. Step 6: Final answer
    x = 16,169.04

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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.