Home / 30,802.18-42,507.03-16,655.01

Finding the Fourth Proportional to 30,802.18, 42,507.03 and 16,655.01

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Solution

The fourth proportional to 30,802.18, 42,507.03 and 16,655.01 is: 22,983.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802.18 : 42,507.03 = 16,655.01 : x
  2. Step 2: Convert to fraction form
    30,802.18/42,507.03 = 16,655.01/x
  3. Step 3: Cross multiply
    30,802.18x = 42,507.03 × 16,655.01
  4. Step 4: Simplify right side
    30,802.18x = 707,955,009.72
  5. Step 5: Solve for x
    x = 707,955,009.72/30,802.18
  6. Step 6: Final answer
    x = 22,983.93

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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.