Home / 34,299.78-47,341.04-20,875.35

Finding the Fourth Proportional to 34,299.78, 47,341.04 and 20,875.35

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Solution

The fourth proportional to 34,299.78, 47,341.04 and 20,875.35 is: 28,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,299.78 : 47,341.04 = 20,875.35 : x
  2. Step 2: Convert to fraction form
    34,299.78/47,341.04 = 20,875.35/x
  3. Step 3: Cross multiply
    34,299.78x = 47,341.04 × 20,875.35
  4. Step 4: Simplify right side
    34,299.78x = 988,260,779.36
  5. Step 5: Solve for x
    x = 988,260,779.36/34,299.78
  6. Step 6: Final answer
    x = 28,812.45

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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.