Home / 30,977.80-42,751.47-17,549.16

Finding the Fourth Proportional to 30,977.80, 42,751.47 and 17,549.16

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Solution

The fourth proportional to 30,977.80, 42,751.47 and 17,549.16 is: 24,219.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,977.80 : 42,751.47 = 17,549.16 : x
  2. Step 2: Convert to fraction form
    30,977.80/42,751.47 = 17,549.16/x
  3. Step 3: Cross multiply
    30,977.80x = 42,751.47 × 17,549.16
  4. Step 4: Simplify right side
    30,977.80x = 750,252,085.76
  5. Step 5: Solve for x
    x = 750,252,085.76/30,977.80
  6. Step 6: Final answer
    x = 24,219.03

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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.