Home / 30,364.81-45,547.49-10,643.34

Finding the Fourth Proportional to 30,364.81, 45,547.49 and 10,643.34

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Solution

The fourth proportional to 30,364.81, 45,547.49 and 10,643.34 is: 15,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,364.81 : 45,547.49 = 10,643.34 : x
  2. Step 2: Convert to fraction form
    30,364.81/45,547.49 = 10,643.34/x
  3. Step 3: Cross multiply
    30,364.81x = 45,547.49 × 10,643.34
  4. Step 4: Simplify right side
    30,364.81x = 484,777,422.22
  5. Step 5: Solve for x
    x = 484,777,422.22/30,364.81
  6. Step 6: Final answer
    x = 15,965.11

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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.