Home / 30,641.47-42,284.09-17,030.35

Finding the Fourth Proportional to 30,641.47, 42,284.09 and 17,030.35

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Solution

The fourth proportional to 30,641.47, 42,284.09 and 17,030.35 is: 23,501.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.47 : 42,284.09 = 17,030.35 : x
  2. Step 2: Convert to fraction form
    30,641.47/42,284.09 = 17,030.35/x
  3. Step 3: Cross multiply
    30,641.47x = 42,284.09 × 17,030.35
  4. Step 4: Simplify right side
    30,641.47x = 720,112,852.13
  5. Step 5: Solve for x
    x = 720,112,852.13/30,641.47
  6. Step 6: Final answer
    x = 23,501.25

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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.