Home / 30,955.59-46,433.28-21,070.35

Finding the Fourth Proportional to 30,955.59, 46,433.28 and 21,070.35

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Solution

The fourth proportional to 30,955.59, 46,433.28 and 21,070.35 is: 31,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.59 : 46,433.28 = 21,070.35 : x
  2. Step 2: Convert to fraction form
    30,955.59/46,433.28 = 21,070.35/x
  3. Step 3: Cross multiply
    30,955.59x = 46,433.28 × 21,070.35
  4. Step 4: Simplify right side
    30,955.59x = 978,365,461.25
  5. Step 5: Solve for x
    x = 978,365,461.25/30,955.59
  6. Step 6: Final answer
    x = 31,605.45

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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.