Home / 28,088.16-38,764.76-17,330.88

Finding the Fourth Proportional to 28,088.16, 38,764.76 and 17,330.88

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Solution

The fourth proportional to 28,088.16, 38,764.76 and 17,330.88 is: 23,918.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.16 : 38,764.76 = 17,330.88 : x
  2. Step 2: Convert to fraction form
    28,088.16/38,764.76 = 17,330.88/x
  3. Step 3: Cross multiply
    28,088.16x = 38,764.76 × 17,330.88
  4. Step 4: Simplify right side
    28,088.16x = 671,827,403.79
  5. Step 5: Solve for x
    x = 671,827,403.79/28,088.16
  6. Step 6: Final answer
    x = 23,918.53

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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.