Home / 20,075.13-30,071.80-9,513.14

Finding the Fourth Proportional to 20,075.13, 30,071.80 and 9,513.14

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Solution

The fourth proportional to 20,075.13, 30,071.80 and 9,513.14 is: 14,250.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.13 : 30,071.80 = 9,513.14 : x
  2. Step 2: Convert to fraction form
    20,075.13/30,071.80 = 9,513.14/x
  3. Step 3: Cross multiply
    20,075.13x = 30,071.80 × 9,513.14
  4. Step 4: Simplify right side
    20,075.13x = 286,077,069.31
  5. Step 5: Solve for x
    x = 286,077,069.31/20,075.13
  6. Step 6: Final answer
    x = 14,250.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.