Home / 28,314.80-39,070.11-15,568.50

Finding the Fourth Proportional to 28,314.80, 39,070.11 and 15,568.50

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Solution

The fourth proportional to 28,314.80, 39,070.11 and 15,568.50 is: 21,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.80 : 39,070.11 = 15,568.50 : x
  2. Step 2: Convert to fraction form
    28,314.80/39,070.11 = 15,568.50/x
  3. Step 3: Cross multiply
    28,314.80x = 39,070.11 × 15,568.50
  4. Step 4: Simplify right side
    28,314.80x = 608,263,065.92
  5. Step 5: Solve for x
    x = 608,263,065.92/28,314.80
  6. Step 6: Final answer
    x = 21,482.16

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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.