Home / 30,490.71-42,075.21-17,059.65

Finding the Fourth Proportional to 30,490.71, 42,075.21 and 17,059.65

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Solution

The fourth proportional to 30,490.71, 42,075.21 and 17,059.65 is: 23,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.71 : 42,075.21 = 17,059.65 : x
  2. Step 2: Convert to fraction form
    30,490.71/42,075.21 = 17,059.65/x
  3. Step 3: Cross multiply
    30,490.71x = 42,075.21 × 17,059.65
  4. Step 4: Simplify right side
    30,490.71x = 717,788,356.28
  5. Step 5: Solve for x
    x = 717,788,356.28/30,490.71
  6. Step 6: Final answer
    x = 23,541.21

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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.