Home / 30,903.19-42,646.70-16,756.34

Finding the Fourth Proportional to 30,903.19, 42,646.70 and 16,756.34

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Solution

The fourth proportional to 30,903.19, 42,646.70 and 16,756.34 is: 23,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903.19 : 42,646.70 = 16,756.34 : x
  2. Step 2: Convert to fraction form
    30,903.19/42,646.70 = 16,756.34/x
  3. Step 3: Cross multiply
    30,903.19x = 42,646.70 × 16,756.34
  4. Step 4: Simplify right side
    30,903.19x = 714,602,433.74
  5. Step 5: Solve for x
    x = 714,602,433.74/30,903.19
  6. Step 6: Final answer
    x = 23,123.91

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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.