Home / 28,587.36-42,870.08-9,873.92

Finding the Fourth Proportional to 28,587.36, 42,870.08 and 9,873.92

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Solution

The fourth proportional to 28,587.36, 42,870.08 and 9,873.92 is: 14,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587.36 : 42,870.08 = 9,873.92 : x
  2. Step 2: Convert to fraction form
    28,587.36/42,870.08 = 9,873.92/x
  3. Step 3: Cross multiply
    28,587.36x = 42,870.08 × 9,873.92
  4. Step 4: Simplify right side
    28,587.36x = 423,295,740.31
  5. Step 5: Solve for x
    x = 423,295,740.31/28,587.36
  6. Step 6: Final answer
    x = 14,807.09

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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.