Home / 28,328.74-42,451.76-25,215.00

Finding the Fourth Proportional to 28,328.74, 42,451.76 and 25,215.00

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Solution

The fourth proportional to 28,328.74, 42,451.76 and 25,215.00 is: 37,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.74 : 42,451.76 = 25,215.00 : x
  2. Step 2: Convert to fraction form
    28,328.74/42,451.76 = 25,215.00/x
  3. Step 3: Cross multiply
    28,328.74x = 42,451.76 × 25,215.00
  4. Step 4: Simplify right side
    28,328.74x = 1,070,421,032.24
  5. Step 5: Solve for x
    x = 1,070,421,032.24/28,328.74
  6. Step 6: Final answer
    x = 37,785.69

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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.