Home / 42,070.21-63,089.57-13,985.08

Finding the Fourth Proportional to 42,070.21, 63,089.57 and 13,985.08

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Solution

The fourth proportional to 42,070.21, 63,089.57 and 13,985.08 is: 20,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,070.21 : 63,089.57 = 13,985.08 : x
  2. Step 2: Convert to fraction form
    42,070.21/63,089.57 = 13,985.08/x
  3. Step 3: Cross multiply
    42,070.21x = 63,089.57 × 13,985.08
  4. Step 4: Simplify right side
    42,070.21x = 882,312,692.55
  5. Step 5: Solve for x
    x = 882,312,692.55/42,070.21
  6. Step 6: Final answer
    x = 20,972.39

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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.