Home / 30,687.20-42,346.95-17,075.93

Finding the Fourth Proportional to 30,687.20, 42,346.95 and 17,075.93

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Solution

The fourth proportional to 30,687.20, 42,346.95 and 17,075.93 is: 23,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687.20 : 42,346.95 = 17,075.93 : x
  2. Step 2: Convert to fraction form
    30,687.20/42,346.95 = 17,075.93/x
  3. Step 3: Cross multiply
    30,687.20x = 42,346.95 × 17,075.93
  4. Step 4: Simplify right side
    30,687.20x = 723,113,612.40
  5. Step 5: Solve for x
    x = 723,113,612.40/30,687.20
  6. Step 6: Final answer
    x = 23,564.01

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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.