Home / 35,038.08-48,328.56-20,880

Finding the Fourth Proportional to 35,038.08, 48,328.56 and 20,880

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Solution

The fourth proportional to 35,038.08, 48,328.56 and 20,880 is: 28,800.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,038.08 : 48,328.56 = 20,880 : x
  2. Step 2: Convert to fraction form
    35,038.08/48,328.56 = 20,880/x
  3. Step 3: Cross multiply
    35,038.08x = 48,328.56 × 20,880
  4. Step 4: Simplify right side
    35,038.08x = 1,009,100,332.80
  5. Step 5: Solve for x
    x = 1,009,100,332.80/35,038.08
  6. Step 6: Final answer
    x = 28,800.10

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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.