Home / 30,868.29-42,598.26-16,721.19

Finding the Fourth Proportional to 30,868.29, 42,598.26 and 16,721.19

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Solution

The fourth proportional to 30,868.29, 42,598.26 and 16,721.19 is: 23,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.29 : 42,598.26 = 16,721.19 : x
  2. Step 2: Convert to fraction form
    30,868.29/42,598.26 = 16,721.19/x
  3. Step 3: Cross multiply
    30,868.29x = 42,598.26 × 16,721.19
  4. Step 4: Simplify right side
    30,868.29x = 712,293,599.13
  5. Step 5: Solve for x
    x = 712,293,599.13/30,868.29
  6. Step 6: Final answer
    x = 23,075.25

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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.