Home / 42,567.30-63,860.94-12,985.13

Finding the Fourth Proportional to 42,567.30, 63,860.94 and 12,985.13

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Solution

The fourth proportional to 42,567.30, 63,860.94 and 12,985.13 is: 19,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,567.30 : 63,860.94 = 12,985.13 : x
  2. Step 2: Convert to fraction form
    42,567.30/63,860.94 = 12,985.13/x
  3. Step 3: Cross multiply
    42,567.30x = 63,860.94 × 12,985.13
  4. Step 4: Simplify right side
    42,567.30x = 829,242,542.90
  5. Step 5: Solve for x
    x = 829,242,542.90/42,567.30
  6. Step 6: Final answer
    x = 19,480.74

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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.