Home / 34,075.45-47,025.48-20,639.13

Finding the Fourth Proportional to 34,075.45, 47,025.48 and 20,639.13

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Solution

The fourth proportional to 34,075.45, 47,025.48 and 20,639.13 is: 28,482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,075.45 : 47,025.48 = 20,639.13 : x
  2. Step 2: Convert to fraction form
    34,075.45/47,025.48 = 20,639.13/x
  3. Step 3: Cross multiply
    34,075.45x = 47,025.48 × 20,639.13
  4. Step 4: Simplify right side
    34,075.45x = 970,564,995.03
  5. Step 5: Solve for x
    x = 970,564,995.03/34,075.45
  6. Step 6: Final answer
    x = 28,482.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.