Home / 30,258.07-45,386.70-13,606.31

Finding the Fourth Proportional to 30,258.07, 45,386.70 and 13,606.31

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Solution

The fourth proportional to 30,258.07, 45,386.70 and 13,606.31 is: 20,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.07 : 45,386.70 = 13,606.31 : x
  2. Step 2: Convert to fraction form
    30,258.07/45,386.70 = 13,606.31/x
  3. Step 3: Cross multiply
    30,258.07x = 45,386.70 × 13,606.31
  4. Step 4: Simplify right side
    30,258.07x = 617,545,572.52
  5. Step 5: Solve for x
    x = 617,545,572.52/30,258.07
  6. Step 6: Final answer
    x = 20,409.28

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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.