Home / 39,420.23-59,172.46-21,885.35

Finding the Fourth Proportional to 39,420.23, 59,172.46 and 21,885.35

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Solution

The fourth proportional to 39,420.23, 59,172.46 and 21,885.35 is: 32,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.23 : 59,172.46 = 21,885.35 : x
  2. Step 2: Convert to fraction form
    39,420.23/59,172.46 = 21,885.35/x
  3. Step 3: Cross multiply
    39,420.23x = 59,172.46 × 21,885.35
  4. Step 4: Simplify right side
    39,420.23x = 1,295,009,646.89
  5. Step 5: Solve for x
    x = 1,295,009,646.89/39,420.23
  6. Step 6: Final answer
    x = 32,851.40

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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.