Home / 30,948.80-42,681.84-24,978.56

Finding the Fourth Proportional to 30,948.80, 42,681.84 and 24,978.56

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Solution

The fourth proportional to 30,948.80, 42,681.84 and 24,978.56 is: 34,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.80 : 42,681.84 = 24,978.56 : x
  2. Step 2: Convert to fraction form
    30,948.80/42,681.84 = 24,978.56/x
  3. Step 3: Cross multiply
    30,948.80x = 42,681.84 × 24,978.56
  4. Step 4: Simplify right side
    30,948.80x = 1,066,130,901.35
  5. Step 5: Solve for x
    x = 1,066,130,901.35/30,948.80
  6. Step 6: Final answer
    x = 34,448.21

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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.