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Finding the Fourth Proportional to 32,700.47, 49,075.43 and 12,980.70

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Solution

The fourth proportional to 32,700.47, 49,075.43 and 12,980.70 is: 19,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,700.47 : 49,075.43 = 12,980.70 : x
  2. Step 2: Convert to fraction form
    32,700.47/49,075.43 = 12,980.70/x
  3. Step 3: Cross multiply
    32,700.47x = 49,075.43 × 12,980.70
  4. Step 4: Simplify right side
    32,700.47x = 637,033,369.30
  5. Step 5: Solve for x
    x = 637,033,369.30/32,700.47
  6. Step 6: Final answer
    x = 19,480.87

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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.