Home / 28,412.16-39,208.80-17,088

Finding the Fourth Proportional to 28,412.16, 39,208.80 and 17,088

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Solution

The fourth proportional to 28,412.16, 39,208.80 and 17,088 is: 23,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.16 : 39,208.80 = 17,088 : x
  2. Step 2: Convert to fraction form
    28,412.16/39,208.80 = 17,088/x
  3. Step 3: Cross multiply
    28,412.16x = 39,208.80 × 17,088
  4. Step 4: Simplify right side
    28,412.16x = 669,999,974.40
  5. Step 5: Solve for x
    x = 669,999,974.40/28,412.16
  6. Step 6: Final answer
    x = 23,581.45

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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.