Home / 28,870.38-39,841.74-16,295.40

Finding the Fourth Proportional to 28,870.38, 39,841.74 and 16,295.40

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Solution

The fourth proportional to 28,870.38, 39,841.74 and 16,295.40 is: 22,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.38 : 39,841.74 = 16,295.40 : x
  2. Step 2: Convert to fraction form
    28,870.38/39,841.74 = 16,295.40/x
  3. Step 3: Cross multiply
    28,870.38x = 39,841.74 × 16,295.40
  4. Step 4: Simplify right side
    28,870.38x = 649,237,090.00
  5. Step 5: Solve for x
    x = 649,237,090.00/28,870.38
  6. Step 6: Final answer
    x = 22,488.00

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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.