Home / 42,290.30-63,429.95-15,991.63

Finding the Fourth Proportional to 42,290.30, 63,429.95 and 15,991.63

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Solution

The fourth proportional to 42,290.30, 63,429.95 and 15,991.63 is: 23,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,290.30 : 63,429.95 = 15,991.63 : x
  2. Step 2: Convert to fraction form
    42,290.30/63,429.95 = 15,991.63/x
  3. Step 3: Cross multiply
    42,290.30x = 63,429.95 × 15,991.63
  4. Step 4: Simplify right side
    42,290.30x = 1,014,348,172.72
  5. Step 5: Solve for x
    x = 1,014,348,172.72/42,290.30
  6. Step 6: Final answer
    x = 23,985.36

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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.