Home / 28,053.36-42,070.91-9,328.35

Finding the Fourth Proportional to 28,053.36, 42,070.91 and 9,328.35

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Solution

The fourth proportional to 28,053.36, 42,070.91 and 9,328.35 is: 13,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.36 : 42,070.91 = 9,328.35 : x
  2. Step 2: Convert to fraction form
    28,053.36/42,070.91 = 9,328.35/x
  3. Step 3: Cross multiply
    28,053.36x = 42,070.91 × 9,328.35
  4. Step 4: Simplify right side
    28,053.36x = 392,452,173.30
  5. Step 5: Solve for x
    x = 392,452,173.30/28,053.36
  6. Step 6: Final answer
    x = 13,989.49

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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.