Home / 39,967.83-59,931.18-21,258.03

Finding the Fourth Proportional to 39,967.83, 59,931.18 and 21,258.03

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Solution

The fourth proportional to 39,967.83, 59,931.18 and 21,258.03 is: 31,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,967.83 : 59,931.18 = 21,258.03 : x
  2. Step 2: Convert to fraction form
    39,967.83/59,931.18 = 21,258.03/x
  3. Step 3: Cross multiply
    39,967.83x = 59,931.18 × 21,258.03
  4. Step 4: Simplify right side
    39,967.83x = 1,274,018,822.38
  5. Step 5: Solve for x
    x = 1,274,018,822.38/39,967.83
  6. Step 6: Final answer
    x = 31,876.11

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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.