Home / 21,114,025.20-31,671,037.80-13,000,692.60

Finding the Fourth Proportional to 21,114,025.20, 31,671,037.80 and 13,000,692.60

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Solution

The fourth proportional to 21,114,025.20, 31,671,037.80 and 13,000,692.60 is: 19,501,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,114,025.20 : 31,671,037.80 = 13,000,692.60 : x
  2. Step 2: Convert to fraction form
    21,114,025.20/31,671,037.80 = 13,000,692.60/x
  3. Step 3: Cross multiply
    21,114,025.20x = 31,671,037.80 × 13,000,692.60
  4. Step 4: Simplify right side
    21,114,025.20x = 411,745,426,760,780.25
  5. Step 5: Solve for x
    x = 411,745,426,760,780.25/21,114,025.20
  6. Step 6: Final answer
    x = 19,501,038.90

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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.