Home / 39,962.40-59,965.20-17,779.20

Finding the Fourth Proportional to 39,962.40, 59,965.20 and 17,779.20

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Solution

The fourth proportional to 39,962.40, 59,965.20 and 17,779.20 is: 26,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,962.40 : 59,965.20 = 17,779.20 : x
  2. Step 2: Convert to fraction form
    39,962.40/59,965.20 = 17,779.20/x
  3. Step 3: Cross multiply
    39,962.40x = 59,965.20 × 17,779.20
  4. Step 4: Simplify right side
    39,962.40x = 1,066,133,283.84
  5. Step 5: Solve for x
    x = 1,066,133,283.84/39,962.40
  6. Step 6: Final answer
    x = 26,678.41

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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.