Home / 21,075.60-31,613.06-6,284.58

Finding the Fourth Proportional to 21,075.60, 31,613.06 and 6,284.58

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Solution

The fourth proportional to 21,075.60, 31,613.06 and 6,284.58 is: 9,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.60 : 31,613.06 = 6,284.58 : x
  2. Step 2: Convert to fraction form
    21,075.60/31,613.06 = 6,284.58/x
  3. Step 3: Cross multiply
    21,075.60x = 31,613.06 × 6,284.58
  4. Step 4: Simplify right side
    21,075.60x = 198,674,804.61
  5. Step 5: Solve for x
    x = 198,674,804.61/21,075.60
  6. Step 6: Final answer
    x = 9,426.77

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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.