Home / 21,742,987.28-30,005,341.74-11,953,598.03

Finding the Fourth Proportional to 21,742,987.28, 30,005,341.74 and 11,953,598.03

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Solution

The fourth proportional to 21,742,987.28, 30,005,341.74 and 11,953,598.03 is: 16,495,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742,987.28 : 30,005,341.74 = 11,953,598.03 : x
  2. Step 2: Convert to fraction form
    21,742,987.28/30,005,341.74 = 11,953,598.03/x
  3. Step 3: Cross multiply
    21,742,987.28x = 30,005,341.74 × 11,953,598.03
  4. Step 4: Simplify right side
    21,742,987.28x = 358,671,793,762,714.06
  5. Step 5: Solve for x
    x = 358,671,793,762,714.06/21,742,987.28
  6. Step 6: Final answer
    x = 16,495,975.89

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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.