Home / 28,036.36-38,688.42-15,461.08

Finding the Fourth Proportional to 28,036.36, 38,688.42 and 15,461.08

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Solution

The fourth proportional to 28,036.36, 38,688.42 and 15,461.08 is: 21,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.36 : 38,688.42 = 15,461.08 : x
  2. Step 2: Convert to fraction form
    28,036.36/38,688.42 = 15,461.08/x
  3. Step 3: Cross multiply
    28,036.36x = 38,688.42 × 15,461.08
  4. Step 4: Simplify right side
    28,036.36x = 598,164,756.69
  5. Step 5: Solve for x
    x = 598,164,756.69/28,036.36
  6. Step 6: Final answer
    x = 21,335.32

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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.