Home / 42,310.40-63,460.80-11,148.08

Finding the Fourth Proportional to 42,310.40, 63,460.80 and 11,148.08

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Solution

The fourth proportional to 42,310.40, 63,460.80 and 11,148.08 is: 16,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,310.40 : 63,460.80 = 11,148.08 : x
  2. Step 2: Convert to fraction form
    42,310.40/63,460.80 = 11,148.08/x
  3. Step 3: Cross multiply
    42,310.40x = 63,460.80 × 11,148.08
  4. Step 4: Simplify right side
    42,310.40x = 707,466,075.26
  5. Step 5: Solve for x
    x = 707,466,075.26/42,310.40
  6. Step 6: Final answer
    x = 16,720.86

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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.