Home / 42,681.88-64,009.06-14,211.26

Finding the Fourth Proportional to 42,681.88, 64,009.06 and 14,211.26

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Solution

The fourth proportional to 42,681.88, 64,009.06 and 14,211.26 is: 21,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,681.88 : 64,009.06 = 14,211.26 : x
  2. Step 2: Convert to fraction form
    42,681.88/64,009.06 = 14,211.26/x
  3. Step 3: Cross multiply
    42,681.88x = 64,009.06 × 14,211.26
  4. Step 4: Simplify right side
    42,681.88x = 909,649,394.02
  5. Step 5: Solve for x
    x = 909,649,394.02/42,681.88
  6. Step 6: Final answer
    x = 21,312.31

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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.